WO2004070820A1 - 配線の作製方法 - Google Patents
配線の作製方法 Download PDFInfo
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- WO2004070820A1 WO2004070820A1 PCT/JP2004/000897 JP2004000897W WO2004070820A1 WO 2004070820 A1 WO2004070820 A1 WO 2004070820A1 JP 2004000897 W JP2004000897 W JP 2004000897W WO 2004070820 A1 WO2004070820 A1 WO 2004070820A1
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45587—Mechanical means for changing the gas flow
- C23C16/45589—Movable means, e.g. fans
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/50—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges
- C23C16/505—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges using radio frequency discharges
- C23C16/509—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges using radio frequency discharges using internal electrodes
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/54—Apparatus specially adapted for continuous coating
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- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
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- H01L21/2855—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic System by physical means, e.g. sputtering, evaporation
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- H01L21/28556—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic System by chemical means, e.g. CVD, LPCVD, PECVD, laser CVD
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- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
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- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32139—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer using masks
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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
- H01L21/76802—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing by forming openings in dielectrics
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- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
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- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
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- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1259—Multistep manufacturing methods
- H01L27/1288—Multistep manufacturing methods employing particular masking sequences or specially adapted masks, e.g. half-tone mask
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- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/60—Forming conductive regions or layers, e.g. electrodes
- H10K71/611—Forming conductive regions or layers, e.g. electrodes using printing deposition, e.g. ink jet printing
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- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/32—Processing objects by plasma generation
- H01J2237/33—Processing objects by plasma generation characterised by the type of processing
- H01J2237/334—Etching
- H01J2237/3342—Resist stripping
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- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- H10K71/20—Changing the shape of the active layer in the devices, e.g. patterning
- H10K71/231—Changing the shape of the active layer in the devices, e.g. patterning by etching of existing layers
Definitions
- the present invention relates to a method for manufacturing a wiring, a contact hole, and a display device, and more particularly, to a method for manufacturing a thin film such as a resist pattern using a droplet jetting method (an ink jet method or a droplet discharging method), a method for producing a CVD (chemical vapor (Growth) method, thin film production method by vapor deposition method or sputtering method, local etching treatment method under atmospheric pressure or near atmospheric pressure, wiring using any method of asshing treatment method, contact hole And a method for manufacturing a display device. Further, the present invention relates to a semiconductor manufacturing apparatus for forming a thin film.
- a droplet jetting method an ink jet method or a droplet discharging method
- CVD chemical vapor (Growth) method
- thin film production method by vapor deposition method or sputtering method local etching treatment method under atmospheric pressure or near atmospheric pressure
- wiring any method of asshing treatment method
- contact hole And a method for manufacturing
- TFTs Thin film transistors formed using thin films on the surface are widely applied to integrated circuits and the like, and are often used as switching elements.
- TFT-based display panels is expanding, especially for large display devices, and the demand for higher definition, higher aperture ratio, higher reliability, and larger screen size is increasing.
- a method for manufacturing a wiring in such a thin film transistor there is a method in which a coating of a conductive layer is formed on the entire surface of a substrate, and then etching is performed using a mask.
- a lithography technique is used in which a film of a photosensitive resin (photoresist) is formed on a substrate and exposed and developed using a mask on which a pattern is drawn and ultraviolet rays. The resist pattern formed by this technique is used as a mask during the etching process (see Patent Document 1).
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-359246
- LCD TVs that are thin and lightweight, which are not available in CRT TVs, have been spreading.
- Screen size is an important factor in increasing the added value of LCD TVs, and less than 20 inches accounts for almost 70% of the current unit-by-inch composition ratio, while 20 inches As described above, a large-sized liquid crystal television having a size of, for example, 40 inches has appeared.
- This increase in screen size is accelerating the expansion of the board size, and the transition is progressing to the fourth generation (680X880, 730X920) and the fifth generation (1000X1200), and the resolution is also VGA ( 640XRGBX480), SVGA (800XR GBX 600), XGA (1024 X RGB X 768), SXGA (128 OXRGB X 1024) are becoming more and more high definition. Disclosure of the invention
- a resist coating is formed by using a spin-coating method in which a resist solution is dropped, the substrate is rotated (spinned), and the coating is formed by the centrifugal force. In this case, about 95% of the resist dropped during spin coating is scattered. Therefore, attempts have been made to improve the resist material, spin speed, and spin method, but about 90% of the registry is wasted. These problems are particularly acute when large substrates are used.
- the present invention has been made in view of such a problem, and by using a droplet jetting method, it is possible to improve a throughput ⁇ a material use efficiency and reduce a manufacturing cost and a wiring and a contact hole. And a method for manufacturing a display device. Another object is to provide a method for manufacturing a wiring, a contact hole, and a display device which can cope with an increase in the size of a substrate by using a plasma treatment method at or near atmospheric pressure.
- Another object is to provide a semiconductor manufacturing apparatus capable of realizing a method for manufacturing a wiring, a contact hole, and a display device which solves the above problems.
- the present invention provides a resist pattern in contact with the conductive layer by forming a conductive layer on a substrate having an insulating surface by a CVD method, a vapor deposition method, or a sputtering method, and using a head that sprays a composition containing a photosensitive agent. Forming a wiring, performing an etching process on the conductive layer using the resist pattern as a mask, and then performing an asking process on the resist pattern.
- the resist pattern is formed by scanning the head or the substrate, and the etching process or the assing process includes a plurality of plasma generating means arranged linearly at or near atmospheric pressure. Is performed by scanning.
- a semiconductor layer or a conductive layer is formed on a substrate having a surface by a CVD method, an evaporation method, or a sputtering method, and a semiconductor layer or a conductive layer is formed on the semiconductor layer or the conductive layer.
- a method for producing a contact hole wherein an etching process is performed on an edge layer to form a contact hole reaching the semiconductor layer or the conductive layer, wherein the etching process is performed under an atmospheric pressure or near an atmospheric pressure. It is characterized in that scanning is performed by a plurality of plasma generating means arranged in a plurality.
- the present invention is characterized in that a display device is manufactured using one or both of the above-described method for manufacturing a wiring and a method for manufacturing a contact hole.
- Examples of the display device include all display devices using thin-film technology, such as a liquid crystal display device using a liquid crystal element and a light emitting device using a self-luminous element.
- the present invention provides a method for forming a conductive layer on a substrate having an insulating surface by a CVD method, a vapor deposition method or a sputtering method, and a liquid for forming a resist pattern using a head for spraying a composition containing a photosensitive agent.
- a semiconductor manufacturing apparatus comprising: a droplet ejecting unit; a moving unit that moves the substrate or the head; and a plurality of plasma generating units that perform an etching process or an asshing process at or near atmospheric pressure.
- the plurality of plasma generating means are linearly arranged.
- the conductive layer or the semiconductor layer is formed by a CVD method, an evaporation method, or a sputtering method, and is preferably formed selectively. Specifically, by using a mask (metal mask), a film is selectively formed only at a desired portion without being formed on the entire surface of the substrate. Also for example evaporation In the case of the method, the supply port for supplying the deposition source is narrowed and scanning is performed, so that the film is not formed on the entire surface of the substrate but is selectively formed only at a desired portion.
- the formation of the resist pattern is characterized by using a head for spraying a composition containing a photosensitive agent.
- This uses a so-called droplet ejection method (inkjet method), and is performed by scanning a head or a plate.
- the use efficiency of the resist material is significantly improved as compared with a case where a resist pattern is formed using spin coating, and the manufacturing cost is reduced.
- the accuracy can be improved and a film can be formed only at a desired position.
- the etching process or the assing process is performed by scanning a plurality of linearly arranged plasma generating means at or near atmospheric pressure. Since this process does not require vacuum equipment, it can improve productivity and reduce manufacturing costs.
- a plurality of plasma generating means arranged linearly is advantageous in terms of tact time.
- a plurality of plasma generating means are linearly arranged so as to have the same length as one side of the substrate. Once positioned, the process can be completed with a single scan. Note that the scanning direction is not limited to the direction parallel to one side of the substrate, and scanning may be performed in an oblique direction.
- the present invention which does not need to constantly supply a reaction gas leads to gas saving and reduction in production cost.
- plasma is generated only in one or more selected from the plurality of plasma supply units. That is, a plurality of plasma generating means arranged linearly are scanned relative to the substrate, and the -It is set so that the reaction gas is supplied only to a desired portion where a rule is to be formed.
- the present invention having such a configuration improves the gas use efficiency and reduces the production cost as compared with the case where the reaction gas is supplied to the entire surface.
- the present invention having the above-described configuration can reduce the space and efficiency of the production line, significantly improve the quality of the display panel, improve the productivity, reduce the production cost, and provide wiring and contacts that are environmentally friendly.
- a method for manufacturing a hole and a display device can be provided.
- high-speed, continuous processing is possible because of the atmospheric pressure method that enables in-line processing linked to production.
- the amount of wasted material is reduced, thereby improving the use efficiency of the material and reducing the manufacturing cost.
- a resist pattern that is in contact with a conductive layer on a substrate is formed by using a head that sprays a composition containing a photosensitive agent, and the conductive layer is subjected to a etching process using the resist pattern as a mask.
- a method of manufacturing a wiring for performing an asking process on the resist pattern wherein the conductive layer is formed by a CVD method, a sputtering method, or an evaporation method, and the resist pattern moves the head or the substrate.
- the etching process or the asshing process is performed at or near atmospheric pressure using a plasma generating means.
- a display device is manufactured using the above wiring manufacturing method.
- the display device include all display devices using a thin-film technology, such as a liquid crystal display device using a liquid crystal element and a light emitting device using a self-luminous element.
- the present invention having the above configuration can reduce the space and efficiency of the production line, In this way, it is possible to provide a method for manufacturing wiring, contact holes, and a display device that contributes to a great improvement in quality, productivity, and a reduction in manufacturing cost by manufacturing the wiring.
- high-speed, continuous processing is possible because of the atmospheric pressure method that enables in-line processing linked to production.
- the amount of wasted material is reduced, thereby improving the use efficiency of the material and reducing the manufacturing cost.
- FIG. 1 is a diagram showing a plasma processing apparatus.
- FIG. 2 is a diagram showing a plasma processing apparatus.
- FIG. 3 is a diagram illustrating the droplet ejection method.
- FIG. 4 is a diagram illustrating a method of manufacturing a wiring.
- FIG. 5 is a diagram illustrating a method for manufacturing a wiring.
- FIG. 6 is a diagram for explaining a method for forming a contact hole.
- FIG. 7 is a diagram illustrating a droplet ejecting apparatus.
- FIG. 8 is a diagram for explaining a manufacturing flow.
- FIG. 9 is a diagram illustrating a sputtering apparatus.
- FIG. 10 is a diagram illustrating a vapor deposition apparatus.
- FIG. 11 is a diagram illustrating a liquid crystal display device.
- FIG. 12 is a diagram illustrating an electronic device.
- FIG. 13 is a diagram illustrating a method for manufacturing a thin film transistor.
- FIG. 14 is a diagram showing a cross-sectional structure of a thin film transistor.
- FIG. 15 is a top view of the thin film transistor.
- FIG. 16 illustrates a method for manufacturing a display device.
- FIG. 17 is a diagram showing a plasma processing apparatus.
- FIG. 18 is a diagram showing a plasma processing apparatus.
- FIG. 19 is a diagram showing a plasma processing apparatus.
- FIG. 20 is a diagram showing a plasma processing apparatus.
- FIG. 21 illustrates a method for manufacturing a thin film transistor.
- FIG. 22 is a diagram showing a method for producing a thin film transistor.
- FIG. 23 illustrates a method for manufacturing a thin film transistor.
- a plasma generating means in which a plurality of electrodes are linearly arranged is scanned to perform an etching process at or near atmospheric pressure (6.6 ⁇ 10 2 to 1.1 ⁇ 10 5 Pa). Performing atthing processing. Therefore, referring to FIGS. 1 and 2, as an example of a plasma processing apparatus used in the present invention, a first electrode surrounds a second electrode. Only a device having a plurality of cylindrical electrodes having a nozzle-like narrow mouth at the tip will be described.
- FIG. 2A is a top view of the device
- FIG. 2B is a cross-sectional view of the device.
- an object 13 such as a glass substrate or a resin substrate represented by a plastic substrate of a desired size is set in a cassette chamber 16.
- a typical method of transporting the workpiece 13 is horizontal transport, but when using substrates of the 5th generation or later, which is a typical workpiece 13, the area occupied by the transporter is reduced. For this purpose, the substrate may be transported vertically with the substrate placed vertically.
- the workpiece 13 arranged in the cassette chamber 16 is transferred to the plasma processing chamber 18 by the transfer mechanism (port arm) 20.
- the transfer mechanism (port arm) 20 In the plasma processing chamber 18 adjacent to the transfer chamber 17, the airflow control means 10, the plasma generating means 12 having a plurality of cylindrical electrodes arranged linearly, and the plasma generating means 12 are moved. Rails 14a, 14b, etc. are provided.
- a known heating means such as a lamp is provided as necessary.
- the airflow control means 10 is for the purpose of dust prevention, and controls the airflow so as to be shielded from the outside air by using an inert gas injected from the gas outlet 23.
- the plasma generating means 12 is moved to a predetermined position by a rail 14a arranged in the transport direction of the workpiece 13 and a rail 14b arranged in a direction perpendicular to the transport direction.
- FIG. Fig. 1 (A) shows a # 1 view of the plasma generating means 12 in which a plurality of cylindrical electrodes are linearly arranged.
- Figs. 1 (B) to (D) show cross sections of the cylindrical electrodes. The figure is shown.
- the first electrode 21 is connected to a power source (high-frequency power source) 29.
- a cooling system (not shown) for circulating cooling water may be connected to the first electrode 21.
- the second electrode 22 has a shape surrounding the first electrode 21 and is electrically grounded.
- Each of the first electrode 21 and the second electrode 22 has a cylindrical shape having a nozzle-like gas port at its tip.
- first electrode 21 and the second electrode 22 may be covered with a solid dielectric.
- the solid dielectric include metal oxides such as aluminum oxide, zirconium dioxide and titanium dioxide, organic substances such as polyethylene terephthalate and polytetrafluoroethylene, oxides such as silicon oxide, glass and barium titanate.
- the solid dielectric may be in the form of a sheet or a film, but preferably has a thickness of 0.05 to 4 mm. This is because a high voltage is required to generate the discharge plasma, and if the solid dielectric is too thin, dielectric breakdown will occur when the voltage is applied, and arcing will occur.
- a process gas is supplied to a space between the first electrode 21 and the second electrode 22 from a gas supply means (gas cylinder) 31 via a valve 27. Then, the atmosphere of this space is replaced, and in this state, when a high frequency voltage (for example, 10 to 500 MHz) is applied to the first electrode 21 by the high frequency power supply 29, the space Plasma is generated inside. Then, when a reactive gas flow containing chemically active excited species such as ions and radicals generated by the plasma is irradiated toward the surface of the object 13, the surface of the object 13 is irradiated. A predetermined surface treatment can be performed.
- Gas supply means gas The gas for the process to be filled into the cylinder 31 is set appropriately according to the type of surface treatment performed in the processing chamber. Further, the exhaust gas is introduced into the exhaust system 31 via the valve 27. In addition, this exhaust gas passes through the philosophy to remove garbage mixed in! ⁇ It may be purified and reused. By reusing in this way, the gas use efficiency can be further improved.
- FIG. 1 (C) shows a plasma generating means 12 in which the first electrode 21 is longer than the second electrode 22 and the first electrode 21 has an acute angle.
- FIG. 1D shows a plasma generating means 12 having a shape for injecting an ionized gas flow generated between the first electrode 21 and the second electrode 22 to the outside.
- the shape of the plasma generating means is not particularly limited, and may have any shape.
- this apparatus is characterized by using the plasma generating means 12 in which a plurality of cylindrical electrodes are linearly arranged, so that the plasma processing can be performed by a single scan, which is particularly effective for large substrates. It is.
- the plasma generating means 12 by running the plasma generating means 12, the processing only needs to be performed at necessary locations, and the supply of gas may be stopped at unnecessary locations, so that the use efficiency of the gas used is improved and the production cost is increased. Can be reduced.
- the object 13 to be processed is The surface of the object 13 is subjected to plasma processing by scanning the object 13 or the plasma generating means 12 while keeping the distance to the means 12 constant. Therefore, the present invention using the plasma generating means 12 in which a plurality of cylindrical electrodes are arranged in a uniaxial direction can reduce the number of times of scanning the object 13 or the plasma generating means 12, so that the This is effective when a large substrate is used as the object 13.
- a source gas such as NF 3 , CF 4 (carbon tetrafluoride), SF 6 , CO x is supplied from the gas supply unit 31, This is performed by supplying a mixed gas of one of hydrogen and oxygen and a rare gas to the plasma generating means 12 to generate plasma.
- etching is performed by generating fluorine atoms using a raw material gas such as NF 3 or SF 6 and reacting with solid silicon to vaporize it as volatile Si F 4 gas and exhausting it to the outside. Perform processing.
- the gas supply means 31 supplies oxygen source gas, one of hydrogen, CF 4 , NF 3 , H 20 , CHF 3 and plasma generating means. It is carried out by supplying it to 12 and generating plasma.
- the thickness Thing processing photosensitive organic resist by introducing oxygen and carbon tetrafluoride, C0 2, C_ ⁇ , and in H 2 ⁇ performs Atsushingu treated by peeling.
- a thin film may be formed by a plasma CVD method using the above apparatus, and a conductive film such as a metal may be formed as well as an insulating film. It is also possible after cleaning treatment of parts, in particular cleaning of the electrodes 21, 22, NF 3, CF 4 (four full Tsu carbon), SF 6, gas such C_ ⁇ x, when the organic material ⁇ ⁇ Cleaning may be performed by plasma using 2 .
- the present invention is characterized in that a resist pattern is formed by a droplet jetting method. More specifically, a resist pattern that is in contact with the conductive layer is formed using one head that ejects a composition containing a photosensitive agent. At this time, the resist pattern is formed by scanning the head or the substrate. Therefore, a plasma processing method performed at or near the atmospheric pressure described above and a method for manufacturing a wiring of the present invention using the droplet ejection method will be described below.
- substrates 101 are made of various materials such as glass, quartz, semiconductors, plastics, plastic films, metals, glass epoxy resins, and ceramics (Fig. 3 (A)).
- any material can be used as long as it can withstand the processing temperature of the manufacturing process of the present invention.
- conductive films 102 a to 102 c are selectively formed on the substrate 101.
- a state in which a base film is already formed on the substrate 101 or a state in which a semiconductor element such as a transistor and an insulating film are already formed may be used on the substrate 101, but here, for convenience of explanation, the substrate 10 It is assumed that a conductive film 102 is formed on 1.
- the conductive film 102 is selectively formed by a CVD method, an evaporation method, or a sputtering method.
- the conductive film is not formed on the entire surface of the substrate 101, but is selectively formed only on a portion where a wiring is to be formed later.
- the efficiency of the material used for the wiring is improved, so that the manufacturing cost can be reduced.
- a source gas, a reaction temperature, and a reaction pressure are set.
- the source gas is WF 6 and the reaction temperature is 200 to 500.
- the reaction temperature is 250-270 ° C., and the gas is thermally activated during the introduction to form a film.
- the reaction temperature is set to 100 to 300 ° C.
- the film is formed by thermal decomposition. It is necessary to perform the treatment under reduced pressure depending on the type of the thin film to be formed. In this case, the pressure is set to a predetermined value.
- typical heating sources include electron heating, an electron beam, a hollow source, and laser ablation.
- a method other than laser ablation may cause a composition change. Therefore, in order to form an alloy film, it is preferable to use a method such as a flash evaporation method in which the alloy material is granulated and individual particles are instantaneously evaporated.
- the supply port of the vapor deposition source is made small, and the vapor deposition source or the male plate is scanned.
- the method of devising electrodes such as a bipolar sputter or a magnetron sputter or the method of devising the method of operating the sputter such as a high-frequency sputter. It does not matter.
- a method for selective formation by sputtering for example, in the case of bipolar sputtering, a structure in which two electrodes are placed vertically and a square plate-like target is sandwiched between the two electrodes is adopted. There is a way to do that. At this time, the area can be selectively formed by setting the area of the evening get itself facing the object to be processed small.
- a film may be selectively formed by using a metal mask in combination with the method of forming a conductive film over the entire surface. In this case, the efficiency of the wiring material is not improved. However, in the subsequent etching process, it is not necessary to etch all the thin films except for the portion covered with the resist pattern, and only the desired cylinder portion needs to be etched. As a result, waste of gas used during the etching process is reduced, and the gas use efficiency increases.
- a photoresist photosensitive resin which reacts to ultraviolet rays is formed on the conductive film 102 by a droplet jetting method to form resists 104 to 106 (FIG. 3 (B )). More specifically, a composition containing a photosensitizer and a head 103 is sprayed to form resists 104 to 106 on the conductive film 102.
- the head 103 can scan up, down, left and right in a state parallel to the surface of the substrate 101.
- a plurality of (for example, three) heads 103 are used. Is also good.
- a plurality of heads having different nozzle diameters may be prepared, and heads having different diameters may be used depending on the application.
- scanning may be performed in parallel with the row direction and column direction of the substrate 101, or scanning may be performed obliquely with respect to the row direction and column direction of the substrate 101. It does not matter.
- the same portion may be scanned a plurality of times to perform recoating.
- the substrate 101 may be moved. Which one to move should be determined according to its accuracy and application.
- the substrate 101 and the head 103 are brought as close as possible in order to drip at a desired location, and the distance is specifically 3 mm or less, preferably 1 mm or less, More preferably, it is 0.5 mm or less. Since the accurate ejection of the droplet also depends on the distance, a sensor or the like for measuring the distance may be used so that the distance can be accurately maintained.
- the conductive film 102 is selectively formed by a CVD method, an evaporation method, or a sputtering method, it is schematically illustrated in FIG. This shows the case where 0 2 is formed.
- the composition ejected from the head 103 may be a composition containing a photosensitive agent.
- a typical positive resist, a nopolak resin, a naphthoquinone diazide compound as a photosensitive agent, and a negative resist A solution obtained by dissolving or dispersing a base resin, diphenylsilanediol, an acid generator, and the like in a solvent is used.
- the solvent esters such as butyl acetate and ethyl acetate, alcohols such as isopropyl alcohol and ethyl alcohol, and organic solvents such as methyl ethyl ketone and acetone are used.
- the concentration of the solvent is preferably set according to the type of the resist.
- the composition sprayed from the head 103 may be a resin material such as an epoxy resin, an acrylic resin, a phenol resin, a nopolak resin, an acrylic resin, a melamine resin, and a polyurethane resin. Good. The viscosity of these resin materials is adjusted by dissolving or dispersing them using a solvent.
- the amount of the composition to be sprayed from the head 103 at a time is 10 to 7 O p 1 (more broadly, 0.001 to 100 p 1), the viscosity is 100 cp or less, and the particle size is 0. 1 or less (more broadly 1 m or less), and the nozzle diameter is preferably 5 to 100, preferably (more broadly 0.01 to 100). This is because drying is prevented, and if the viscosity is too high, the composition cannot be sprayed smoothly from the spray port. Adjust the viscosity, surface tension, drying rate, etc. of the composition according to the solvent used and the application. It is preferable that the composition sprayed from the head 103 is continuously dropped on the substrate to form a linear or striped shape. Good.
- the formation of the resist pattern by the above-described droplet jetting method is performed under atmospheric pressure and reduced pressure (near atmospheric pressure, including vacuum).
- the reduced pressure refers to a pressure lower than the atmospheric pressure.
- an atmosphere filled with nitrogen, a rare gas, or another inert gas for example, 1 ⁇ 10 2 to 2 ⁇ 10 4 Pa (preferably, 5 ⁇ 10 2 to 5 X 10 3 Pa), and in a higher vacuum (under reduced pressure), l to 5 X 10 4 Pa (l X l 0 2 to l X 10 3 Pa) Good.
- a pre-baking process of baking at about 10 ° C. is performed for the purpose of curing the resist.
- a lamp annealing device that directly heats the substrate at high speed or a laser-irradiation device that irradiates a laser beam is used by using a lamp such as a hammer as a heating source.
- a heating process can be performed only at a desired location by scanning the heating source.
- the shape of the beam spot on the substrate of the laser light emitted from the laser oscillating device has the length of a column or a row, that is, the length of one side of the pattern. It is preferable to form the wire so as to have the same length as the wire.
- laser irradiation can be completed by one scan.
- a furnace annealing furnace set at a predetermined temperature may be used.
- the exposure process is a process in which a mask (photomask) 107 in which a target pattern is written in advance is overlaid on the resists 104 to 106, and ultraviolet light is irradiated from above.
- a mask (photomask) 107 in which a target pattern is written in advance is overlaid on the resists 104 to 106, and ultraviolet light is irradiated from above.
- the entire surface of the substrate is divided into several areas, and light of the photosensitive wavelength range of the photosensitive agent is irradiated using a light source such as an ultraviolet lamp.
- the resist exposed to ultraviolet light by exposure is developed by immersing it in a developer and removed, and the pattern baked by exposure is converted to the actual resist pattern 108 to 110.Sake 4 (A) ).
- a boss baking treatment for firing at about 120 ° C. is performed again.
- the portions of the film which are not covered with the resist patterns 108 to L10 are removed by etching using plasma generating means 118 (FIG. 4B).
- the present invention is characterized in that dry etching using plasma is performed at or near atmospheric pressure.
- Etching gas may be appropriately selected depending on the workpiece is carried out using CF 4, NF 3, fluorine-based, such as SF 6, chlorine-based etching gas, such as C 1 2, BC 1 3.
- the conductive layer is etched into a tapered shape by using a gas mixed with oxygen and utilizing the fact that the resist, which is an organic substance, is also etched. Resist patterns 1 15 to 1 17 were formed.
- the resist patterns 1 15 to L 17 are removed by performing an asshing process using the plasma generating means 118 (FIG. 4C).
- the present invention is characterized by using a plasma asher which reacts a plasma gas with a resist under or near atmospheric pressure to vaporize and remove the resist.
- a plasma asher which reacts a plasma gas with a resist under or near atmospheric pressure to vaporize and remove the resist.
- Atsu Shah generally have been used oxygen gas
- the resist is carbon, oxygen, since it is a solid material made from hydrogen, oxygen plasma and the chemical reactions CO 2, H 2 0, ⁇ 2 It uses the phenomenon of gas.
- impurities such as heavy metals contained in the actual resist are not removed, so that the resist may be washed in an outlet station.
- the etching process and the assing process are performed by scanning a plurality of plasma generating means arranged linearly.
- This process requires vacuum equipment. Since it is not required, it is possible to improve productivity and reduce manufacturing costs.
- using a plurality of plasma generating means arranged linearly is advantageous in terms of tact time.
- a plurality of plasma generating means are linearly arranged so as to have the same length as one side of the substrate. With this arrangement, the process can be completed with one scan. Note that the scanning direction is not limited to the direction parallel to one side of the substrate, and scanning may be performed in an oblique direction.
- the present invention which does not need to constantly supply a reaction gas leads to gas saving and reduction in production cost.
- a pattern of the conductive layers 112 to I14 can be formed on the substrate 101.
- the pattern of the conductive layers 112 to 114 is preferably 5 to 50 m for gate wiring (capacitance wiring) and 5 to 25 m for source wiring.
- gate wiring gate wiring
- source wiring source wiring
- an example in which a pattern made of a conductive material is formed on the substrate 101 is described.
- the present invention is not limited to this, and a wiring forming step of a semiconductor integrated circuit, a liquid crystal panel EL, It can be applied to various fields such as the wiring formation process of the TFT substrate that constitutes the panel.
- the present invention is not limited to the exemplification of the present embodiment, but is applicable to the case of forming an insulating film such as silicon oxide acryl resin or a pattern of a semiconductor such as polycrystalline silicon or amorphous silicon. Can be. (Embodiment 2)
- a semiconductor layer (or a conductive layer or a wiring layer) 125 is formed on a substrate 101 by a known method, and an insulating film 126 is formed on the semiconductor layer 125. Then, on the insulating film 126, resist patterns 127 and 128 are formed at positions other than those where the openings are to be formed. In this state, an etching process is performed by the plasma supply means 12. Then, as shown in FIG. 6B, a contact hole 129 reaching the semiconductor layer 125 can be formed. The contact hole is about 2.5 to 30 xm, depending on the diameter of the plasma supply means 12 and the resolution of the display panel used.
- the etching process is performed by scanning a plurality of plasma generating units arranged linearly at or near atmospheric pressure, and one or more selected from the plurality of plasma supply units are scanned.
- a plurality of plasma generating means arranged linearly is advantageous in terms of tact time.
- a plurality of plasma generating means are linearly arranged so as to have the same length as one side of the substrate.
- the present invention which does not require the supply of the reaction gas to all the plasma supply means can improve the efficiency of the gas and reduce the production cost.
- 6 (C) to 6 (E) show another example of the present invention.
- the plasma treatment is selectively performed to adjust the shape of the interlayer rising film, thereby forming an interlayer insulating film having a contact hole. It forms a film.
- the present invention is characterized in that the interlayer insulating film is formed by an ink jet method.
- a semiconductor layer or a wiring layer (conductive layer) 125 formed on a substrate 101 is formed.
- the wiring layer 125 made of metal will be described as an example.
- a solution containing a polymer material (typically, polyimide, acrylic, benzocyclobutene, etc.) is sprayed and applied to a predetermined position on the substrate 101 by an ink jet method, and the solvent is removed by baking to remove the layer 13. 0a is formed (Fig. 6 (C)).
- a part of the wiring layer 125 is exposed.
- the exposed portion is a portion to be a contact hole later. Since a certain amount is required to function as an interlayer insulating film, a desired J value may be obtained by repeating the spray coating and the preliminary baking (or baking).
- a photosensitive or non-photosensitive organic material (polyimide, acrylic, polyamide, polyimide amide, resist or benzocyclobutene), or a laminate of these materials is used. be able to.
- a photosensitive or non-photosensitive organic material polyimide, acrylic, polyamide, polyimide amide, resist or benzocyclobutene
- a laminate of these materials is used. be able to.
- the insulating layer 130a any of a negative type which becomes insoluble in an etchant by photosensitive light and a positive type which becomes soluble in an etchant by light can be used.
- the coating is not performed on the entire surface of the substrate unlike the spin coating method, the material can be largely saved.
- an end portion of the insulating layer 130a is selectively etched by plasma treatment using a plasma supply means (nozzle) 12 so as to form the insulating layer 130a.
- a contact hole in a This etching adjusts the shape of the insulating layer 130a. It is also a process that can be done.
- a contact hole is formed by previously enlarging a hole opened in the layer 130a, and a rising layer 130b is formed. Since there are fewer portions to be etched as compared with the etching of the conventional photolithography technology, a contact hole can be formed in a short time. In the present invention, since etching is not performed using a resist mask, a resist forming process can be omitted.
- the dust when dust such as impurities is present in the exposed portion of the wiring layer 125 at the same time, the dust can be removed. Further, when a natural oxide film is formed on the exposed portion of the wiring layer 125, the natural oxide film can also be removed.
- a wiring 13 1 is formed as shown in FIG. Note that the insulating layer 130b functions as an interlayer film. If wiring is formed by an inkjet method, a maskless process can be performed, and a process suitable for mass production can be performed. This embodiment can be freely combined with the above embodiment.
- the plasma supply means has a nozzle 92 formed of glass or quartz glass.
- a first electrode (high-frequency electrode) 88 connected to a high-frequency power supply 89 and a grounded second electrode (ground electrode) 87 are disposed under the nozzle 92 so as to face each other. The high frequency voltage is applied between the first electrode 88 and the second electrode 87.
- a gas supply means (gas cylinder) 85 is connected to the nozzle 92 via a notch 86.
- a predetermined gas is supplied to the gas supply means 85 via pulp 86.
- a stage 91 made of a stainless steel plate or the like is arranged below the nozzle 92, and an object 90 to be irradiated with a plasma gas flow is placed on an upper surface of the stage 91. Is done.
- an appropriate amount of oxygen gas or carbon tetrafluoride gas or a mixture of oxygen gas and carbon tetrafluoride gas is added to a rare gas, and this is used as a discharge gas, and is supplied to the nozzle 92 under atmospheric pressure. While supplying, a high-frequency voltage is applied to the first electrode 88. Then, plasma is generated between the two electrodes. When a reactive gas flow containing chemically active excited species such as ions and radicals generated by the plasma is applied to the surface of the object 90, the surface of the object 90 is irradiated with the reactive gas. A predetermined surface treatment can be performed.
- FIG. 17A a perspective view of the plasma processing apparatus shown in FIG. 17A is shown in FIG.
- the nozzles 92 are arranged to face each other in parallel, and form a gas flow path in the gap. Then, along the longitudinal direction of the nozzle 92, a first electrode 88 (not shown) connected to the high-frequency power source 89, and a second electrode 87 facing the first electrode 88. Is self-established. At the lower end of the nozzle 92, fin plates 94, 95 orthogonal to the nozzle 92 are provided. In addition, a plurality of supply holes are provided along the gas flow path at the upper part of the nozzle 92, and gas control means (not shown) for uniformly supplying the discharge gas to the gas flow path is provided. I have. Further, the side of the gas flow path is closed by a side plate (not shown), so that the reaction gas flow generated in the gas flow path can be injected only from below the gas flow path.
- the plasma processing apparatus having the above configuration and used in the present invention can generate a linear discharge, and generates a reaction gas flow by the plasma generated by the discharge. By irradiating the object 90, a predetermined asshing process or etching process can be performed.
- FIG. 18 (A) is a top view of the plasma processing apparatus according to the present invention
- FIG. 18 (B) is a cross-sectional view.
- an object to be processed 12a such as a glass substrate, a resin substrate, or a semiconductor substrate to be subjected to surface treatment is set in the cassette chamber 2la.
- a substrate having a desired size is used as the processing target 12a. It is preferable that the substrate set in the cassette chamber 21a is preliminarily subjected to pretreatment such as cleaning.
- Reference numeral 22a denotes a transfer chamber, and the transfer mechanism 20a (for example, a robot arm) transfers the workpiece 12a disposed in the cassette chamber 21a to the plasma processing chamber 23a.
- horizontal transport can be cited. Vertical transfer may be performed with the substrate placed vertically.
- an airflow control means 18a that creates an air flow so as to shut off outside air for dust prevention and also transfers the workpiece 12a
- a heating means 19 and a plasma generating means 25 are provided.
- the heating unit 19 a known heating unit such as an octogen lamp may be used, and heating is performed from the lower surface of the processing target 12a.
- Reference numeral 18a denotes an airflow control unit, and 26 denotes a gas outlet, which controls the airflow using a carrier gas such as an inert gas supplied from the gas supply unit 29. Since the plasma processing apparatus used in the present invention is operated at or near the atmospheric pressure, only the airflow control means 18a controls the airflow near the plasma generation means 25 to prevent contamination from the outside. The backflow of the reaction product can be prevented. In other words, separation from the outside world can be performed only with this airflow control means 18a. It is not necessary to completely seal the processing chamber 23a. In addition, the present invention does not require time for evacuation or opening to the atmosphere, which is necessary for the decompression device, and does not need to arrange a complicated vacuum system.
- a carrier gas such as an inert gas supplied from the gas supply unit 29.
- the gas supplied from the gas supply means 29 is heated to a desired temperature (for example, 50 degrees to 800 degrees) by the heating means 28, and the heated gas is supplied to the object 12a.
- the object to be treated 12a is heated by spraying it.
- the heating means 28 is not particularly limited as long as it can heat gas, and a known means may be used.
- the heated gas is blown onto the upper surface of the object 12a to be heated, and further, the lower surface of the object 12a is heated by the heating means 19. In this way, by heating both surfaces of the object 12a, the object 12a is uniformly heated.
- an inert gas may be used as the carrier gas supplied from the gas supply unit 29.
- the plasma generating means 25 includes a first electrode 13a and a second electrode 14a, and is connected to a high-frequency power supply 17a, an exhaust system, gas supply means, and the like (FIG. 18).
- a high-frequency power supply 17a an exhaust system, gas supply means, and the like (FIG. 18).
- the workpiece 12a having been subjected to the predetermined surface treatment is transferred to the transfer chamber 24, and transferred from the transfer chamber 24 to another processing chamber.
- first electrode 13a and the second electrode 1a may be covered with a solid dielectric.
- the solid dielectric include metal oxides such as aluminum oxide, zirconium dioxide and titanium dioxide, organic substances such as polyethylene terephthalate and polytetrafluoroethylene, oxides such as silicon oxide, glass and barium titanate.
- the thickness of the solid dielectric is preferably from 0.05 to 4 mm. This is because a high voltage is required to generate a discharge plus or minus, and if the solid dielectric is too thin, dielectric breakdown will occur when voltage is applied, and arcing will occur.
- FIG. 19 shows the gas path.
- 13a and 14a are electrodes made of conductive metal such as aluminum, copper, and stainless steel, and the first electrode 13a is connected to a power supply (high-frequency power supply) 17a.
- a cooling system (not shown) for circulating cooling water may be connected to the first electrode 13a.
- the second electrode 14a has a shape surrounding the first electrode 13a, and is electrically grounded.
- the first electrode 13a and the second electrode 14a have a cylindrical shape having a nozzle-like gas supply port at the tip.
- the gas heated by the heating means 28 is supplied to the space between the first electrode 13a and the second electrode 14a. Then, the atmosphere in this space is replaced, and in this state, a high-frequency voltage (for example, 10 to 5 ⁇ 0 MHz) is applied to the first electrode 13a by the high-frequency power supply 17a, and plasma is generated in the space. 1 1 occurs.
- a high-frequency voltage for example, 10 to 5 ⁇ 0 MHz
- the object 12a Performs surface treatments such as thin film formation and cleaning on the surface.
- 27 is a valve
- 28 is a heating means
- 29, 30a and 31a are gas supply means
- 32 is exhaust gas
- 33 is a filter.
- the heating means 28 heats the gas supplied from the gas supply means 9, 30a, 31a until a desired temperature (for example, 50 to 800 degrees) is reached.
- Reference numeral 29 denotes a gas supply means for a carrier gas
- 30a denotes a gas supply means for a purified gas
- 31a denotes a gas supply means for a process gas.
- As the carrier gas use a gas that does not affect the surface treatment performed in the processing chamber, such as an inert gas.
- the process gas is set appropriately according to the type of surface treatment performed in the processing chamber.
- Air gas 3 2 Is introduced into the filter 28 via the knob 27.
- the filter 28 removes dust mixed in the gas.
- the gas purified by the filter 33 is again introduced into the gas supply means 30a for the purified gas, and is used again as a process gas.
- the processing target 12 a floats horizontally by the gas blown in the oblique direction and the vertical direction from the airflow control means 18 a and the gas from the space between the two electrodes, and the non-contact It is transported in the traveling direction in the state. In the vicinity of the electrode, gas is blown upward, and the object 12a floats by this gas.
- gas blowing and gas suction are performed simultaneously to control the height at which the object 12a floats. Further, using the valve 27, the horizontal accuracy of the processing target 12a is adjusted by the flow rate of the gas, and the processing target 12a is connected to the first and second electrodes 13a and 14a. Adjust the distance precisely. This configuration prevents distortion, warping, and in the worst case, cracking of a large and thin workpiece 12a that is difficult to transport.
- the air flow control means 18 and the mechanical mouth pot (transport mechanism) 51 are used to 12a may be transported. Then, the processing target 12a can be transported horizontally in the traveling direction. Also, as shown in FIG. 20 (C), a rail 53 is installed in the traveling direction of the workpiece 1 2a, and a bogie 52 traveling on the rail 53 is provided instead of the robot arm 51 as shown in FIG. 20 (C). Alternatively, the object to be processed 12a may be transported horizontally. (Example)
- FIG. 7 shows a droplet ejecting apparatus using the droplet ejecting method.
- the period of ejecting the head (ink head) 201 composition and the moving speed of the substrate 215 are determined. Adjust.
- a nozzle 202 for ejecting gas may be provided adjacent to the head 201 as a means for smoothing the composition.
- the composition ejected onto the substrate 215 is smoothed by the gas ejected from the nozzle 202. In other words, while maintaining the distance between the head 201 and the substrate 215, by moving the head 201 or the substrate 215, a linear pattern is formed.
- the gas can be ejected from the nozzle 202 to smooth the pattern.
- a moving mechanism 20 for moving the head 201 up and down and its control means 203 are provided, and the head 201 is brought close to the substrate 215 only during pattern formation.
- the apparatus includes a substrate stage 205 that fixes the substrate 215 and moves in the direction to fix the substrate 215, a unit 200 that supplies the composition to the head 201, and a nozzle 2. It comprises means for supplying gas to 02 and the like.
- the housing 210 covers the head 201, the substrate stage 205, and the like. Further, when using the above-mentioned apparatus, the same gas as the solvent of the composition is supplied by the gas supply means 208 and the shower head 209 provided in the housing 210 to replace the atmosphere. Drying can prevent drying to some extent, and printing can be continued for a long time.
- FIGS. 5 (D) and 5 (E) are cross-sectional views of the head 103, and FIG. Two methods of injecting the composition from 103 will be described.
- 121 is the composition
- 122 is the head.
- FIG. 5 (D) shows that the injection of the composition 122 from the head 103 does not stop, that is, the composition 122 is continuously injected.
- FIG. 5 (E) shows a case in which a method of forming a pattern by dropping the composition 121 from the head 103 is performed by ilffl. In the present invention, either method may be used.
- a deposition chamber 225 that mainly forms the conductive layer
- a droplet ejection processing chamber 227 incorporating the device shown in Fig. 7, a laser irradiation chamber 228, an exposure processing chamber 225, and cleaning.
- the flow sequentially passing through the chamber 238 and the plasma processing chamber 237 is shown.
- Each processing room will be provided with an exhaust pump as required.
- an oil rotary pump, a mechanical booster pump, a turbo molecular pump or a cryopump can be used, but a cryopump effective for removing water is preferable.
- a sputtering apparatus FIG. 9
- a vapor deposition apparatus FIG. 10
- the droplet jet processing chamber 227 is characterized by forming a resist pattern.
- the droplet ejection processing chamber 227 has the configuration shown in FIG. 7 described above, and is provided with one or a plurality of heads shown in FIGS. 5B and 5C. Then, a resist pattern is formed by scanning the head or the substrate.
- the laser irradiation chamber 228 is used for applications such as heat treatment. Place the substrate on the substrate , A laser oscillator 230, an optical system 229, a central processing unit, and a computer which also has storage means such as a memory.
- the exposure processing chamber 225 is used when performing exposure processing after forming a resist pattern in the droplet jet processing chamber 227.
- the exposure processing chamber 225 is provided with a processing unit 239 for irradiating the resist pattern with light in the photosensitive wavelength range of the photosensitive agent.
- the light in the photosensitive wavelength range of the photosensitizer depends on the photosensitizer, but generally requires light of a wavelength of 350 to 450 nm.
- an ultra-high pressure mercury lamp generally used as a light source of a 1 ⁇ projection exposure apparatus for multi-wavelength light or a 1 ⁇ projection exposure apparatus for single wavelength light is mentioned.
- Optical filters include absorption filters and thin-film interference filters. These absorption filters and thin-film interference filters are appropriately laminated to form g-line (433 nm), h-line (405 nm), and i-line. (365 nm).
- the processing time of light irradiation is not strict as in the case of the exposure time in an exposure apparatus, an apparatus configuration in which light irradiation processing is performed for a predetermined time is required because it affects the softened shape of the resist pattern.
- a device configuration may include a shutter mechanism or a mechanism for supplying power to the ultra-high pressure mercury lamp only for a predetermined time.
- the cleaning chamber 238 is a spin-coating type processing chamber, in which IPA or pure water is supplied to perform a rinsing process after peeling. It should be noted that the present invention relates to the first and third embodiments in which the above-mentioned plasma processing apparatus removes the resist by asking at atmospheric pressure or near atmospheric pressure. Depending on the process, the resist may be removed by supplying a resist stripping solution in a spin-coating processing chamber such as the cleaning chamber 238 depending on the process. In the plasma processing chamber 237, etching and asshing are performed at or near atmospheric pressure.
- the present invention uses an apparatus that operates at or near atmospheric pressure, the processing chamber for droplet ejection 227, the plasma processing chamber 237, the processing chamber for forming a thin film, and the inkjet for droplets are used. It is possible to provide a manufacturing apparatus provided with moving means for moving the head at once. With the manufacturing apparatus having such a configuration, in-line processing can be more easily performed, and space and efficiency of the manufacturing line can be reduced.
- FIG. 9 shows an example of a magnetron type sputtering apparatus.
- the apparatus includes a film forming chamber 311 provided with a transfer port (removal port) 322 for removing a workpiece (substrate).
- a target 317 is provided in the film forming chamber 311, and is cooled (water-cooled) by a coolant 319 via a packing plate.
- the permanent magnet 318 makes it possible to form a uniform film on the opposing substrate surface by making a circular motion or a linear motion in a direction parallel to the target surface.
- the shutter 323 opens and closes before and after the start of film formation to prevent the formation of a film in an unstable plasma state at the beginning of discharge.
- the substrate 3 13 and the mask 3 14 are set on the substrate holding means 3 12 by moving the substrate holder 1 3 7 and the mask holder 3 2 8. At this time, the alignment between the substrate 3 13 and the mask 3 14 may be performed using a CCD camera 3 16 provided in the apparatus. Ma Further, the substrate holding means 3 12 is provided with a magnet 1 living body (magnet) 3 15, and the substrate 3 13 and the mask 3 14 are fixed by the magnetic material 3 15. At this time, a spacer may be provided to keep a certain gap (height) so that the substrate 313 and the mask 314 do not contact each other.
- the means for holding the target 3 17 includes means 3 26 for raising and lowering the evening get 3 17, and controlling the distance between the substrate 3 13 and the evening get 3 17 during film formation. Can be. Of course, means for moving the substrate 3 13 up and down may be provided in the substrate holding means 3 12 to control the distance between the substrate 3 13 and the evening get 3 17 during film formation.
- a sheath heater may be embedded in the substrate holding means 312 as a heating means, and a heated rare gas (argon gas) may be introduced from the back side of the substrate 313 to increase the uniformity.
- argon gas argon gas
- noble gas or oxygen gas is introduced into the awakening 3 1 1 1 by gas introduction means 3 2 1 force, and a rectifying plate 3 2 4 controlled by a conductance valve 3 2 5 is provided in a film forming chamber 3 1 It is provided for the purpose of rectifying the flow of the sputtering gas within 1.
- the high frequency power supply 320 is connected to the evening get 3 17.
- FIG. 9B shows an example of a mask 330 used for forming a conductive film by a sputtering method.
- the mask 314 has a mask pattern 331 in a slit shape.
- the mask pattern 331 is used to form a narrow pattern such as 5 to 20 for forming a signal line arranged in a pixel portion, or 150 to 10 for forming a lead wiring.
- a wide pattern such as 0 0 may be provided and set appropriately according to the application.
- auxiliary wiring may be provided on the mask 314 in parallel with the slit for the purpose of reinforcement.
- the width, length, and location of the auxiliary wiring may be set to 3 ⁇ 41 so as not to hinder the film formation.
- Such masks 3 1 4 are made of nickel, platinum,
- a mask formed of a metal material, such as copper, stainless steel or quartz glass, is called a metal mask.
- the mask 314 is preferably formed to have a thickness of about 5 to 25 ⁇ m.
- the present invention is characterized in that a mask 314 is arranged so as to overlap the substrate 313, and a thin film is selectively formed on the substrate 313. More specifically, a high-frequency power is applied in an atmosphere containing a rare gas, and a thin film having a desired shape is formed by a sputtering method.
- a high-frequency power is applied in an atmosphere containing a rare gas, and a thin film having a desired shape is formed by a sputtering method.
- the mask 314 is arranged in this way to form a thin film of a desired shape, the utilization efficiency of the material is not improved, but in a later etching process, the area other than the area covered with the resist pattern is removed. There is no need to etch the thin film, and only the desired portion needs to be etched. Therefore, waste of gas used in the etching process is reduced, and gas use efficiency increases.
- FIG. 10 shows an example of a vapor deposition apparatus.
- 350 is a sample port and 351 is a material.
- the material contained in the sample boat 350 is vaporized and released by resistance heating by electrodes (not shown). At this time, the released material adheres to the substrate 340 after passing through the gap of the mask 343 made of a conductive material.
- the mask 343 is made of a conductive material such as copper, iron, aluminum, tantalum, titanium, and tungsten.
- resistance heating was used as an example of the evaporation source. It may be heat.
- the material may be negatively charged or positively charged during vapor deposition.
- FIG. 10B is a diagram showing an example of a current-heating type vapor deposition apparatus different from FIG. 10A.
- 370 is a filament
- 371 is a crucible made of a material (for example, quartz or the like) that can withstand the temperature generated by the filament 370, and is made of, for example, stainless steel.
- the filament 370 is heated by energizing to evaporate the material into atoms or molecules and adhere the atomized or molecular material to the substrate 372.
- a thin film is formed.
- FIG. 10 (B) shows a conical cage-shaped filament, the shape may be changed as appropriate according to the purpose. For example, a U-shaped filament may be used.
- an active matrix substrate is manufactured using the substrate 600 having a light-transmitting property.
- the board size of the board 600 is 60 OmmX 72 Omm, 68 OmmX 880 mm, 100 OmmX 120 Omm, 110 OmmX 125 Omm, 115 OmmX 1 30 Omm, 150 OmmX 180 Omm, 180 OmmX 200 Omm, 2000
- a large area substrate such as mmX 2100mm, 220 OmmX 2600mm, or 260 OmmX 3100mm to reduce manufacturing costs.
- a glass substrate such as barium borosilicate glass or alumino borosilicate glass typified by # 7059 glass, # 1737 glass, and the like of KINGING CO., LTD. Can be used.
- a translucent substrate such as a quartz substrate or a plastic substrate can be used as another substrate.
- the active matrix substrate corresponds to a substrate on which a device such as a thin film transistor is formed.
- the pixel pitch is formed by a design rule in which both the vertical length and the horizontal length are 50 to 750 m.
- a conductive layer is entirely or selectively formed on a substrate 600 having a surface, a resist mask is formed by a droplet jetting method, and unnecessary portions are removed by etching. Form wiring and electrodes (gate electrodes, storage capacitor wiring, terminals, etc.). Note that a base insulating film is formed over the substrate 600 if necessary.
- the above-described plasma processing apparatus that operates at or near atmospheric pressure may be used.
- the cost can be reduced by using the plasma processing apparatus which does not require a complicated vacuum system.
- the wiring and the electrode are formed of an element selected from Ti, Ta, W, Mo, Cr, and Nd, an alloy containing the above element, or a nitride containing the above element.
- an element selected from Ti, Ta, W, Mo, Cr, and Nd, an alloy containing the above element, or a nitride containing the above element as a component is selected and laminated. You can also.
- the above-mentioned wiring and electrode materials include Cu, Al, Ag, Au, Fe, Ni, Pt or alloys thereof. It can also be used.
- a gate insulating film is formed on the entire surface by the P C VD method.
- the gate insulating film is formed using a stacked layer of a silicon nitride film and a silicon oxide film, and has a thickness of 50 to 20 O nm, preferably 150 nm.
- the gate insulating film is not limited to a stack, and a gate insulating film such as a silicon oxide film, a silicon nitride film, a silicon oxynitride film, or a tantalum oxide film can be used.
- a first amorphous semiconductor film having a thickness of 50 to 200 nm, preferably 100 to 150 nm is formed on the gate film by a plasma CVD method or a sputtering method.
- a film is formed on the entire surface by a known method such as the above.
- an amorphous silicon (a-Si) film is formed with a thickness of 10 O nm.
- the amorphous silicon film be formed using a plasma CVD apparatus which operates at or near atmospheric pressure and has a linear plasma supply means. This makes it possible to form an amorphous silicon film in a few scans, and furthermore, it is only necessary to form a film at a desired place, which leads to a reduction in deposition gas and a reduction in manufacturing cost. Is possible.
- a second amorphous semiconductor film containing an impurity element of one conductivity type (N-type or P-type) is formed to a thickness of 20 to 80 nm.
- Second containing impurity element imparting one conductivity type The amorphous semiconductor film is formed over the entire surface by a known method such as a plasma CVD method or a sputtering method.
- a second amorphous semiconductor film containing an N-type impurity element is formed using a silicon target to which phosphorus is added.
- a resist mask is formed by a droplet jetting method, unnecessary portions are removed by etching, and an island-shaped first amorphous semiconductor film and an island-shaped second amorphous semiconductor film are formed. I do.
- wet etching or dry etching is used as an etching method.
- a resist mask is formed by a droplet jetting method, and unnecessary portions are removed by X-etching, and the wiring is formed.
- Form lines and electrodes (source wiring, drain electrode, capacitance electrode, etc.).
- the materials of the above wirings and electrodes include Al, Ti, Ta, W, Mo, Cr, Nd, Cu, Ag, Au, Cr, Fe, Ni, P It is formed of an element selected from t or an alloy containing the element.
- a resist mask is formed by a droplet jetting method, and unnecessary portions are removed by etching to form a source wiring, a drain electrode, and a capacitor electrode. Etching or dry etching is used as an etching method at this time.
- a storage capacitor having an insulating film made of the same material as the gate insulating film as a dielectric is formed. Then, using the source wiring and the drain electrode as a mask, a part of the second amorphous semiconductor film is removed in a self-aligned manner, and a part of the first amorphous semiconductor film is further thinned. The thinned region becomes a TFT channel forming region.
- a protective film made of a silicon nitride film having a thickness of 150 nm and a first interlayer insulating film made of a silicon oxynitride film having a thickness of 150 nm are formed on the entire surface by a plasma CVD method.
- a plasma CVD apparatus which operates at or near atmospheric pressure and has a linear plasma supply means.
- hydrogen etching is performed to produce a channel-etch type TFT.
- the TFT structure is a channel etch type
- the TFT structure is not particularly limited, and a channel stopper type TFT, a top gate type TFT, or a forward type TFT may be used. .
- a resist mask is formed by a droplet jetting method, and then a contact hole reaching the drain electrode and the capacitor electrode is formed by a dry etching process.
- a contact hole (not shown) for electrically connecting the gate wire and the terminal portion is formed in the terminal portion, and a metal wire (not shown) for electrically connecting the gate wire and the portion is formed. It may be formed.
- a contact hole (not shown) reaching the source wiring may be formed, and a metal wiring connected to the source wiring may be formed.
- a pixel electrode such as ITO (indium tin oxide) may be formed, or after forming a pixel electrode such as ITO, these metal wirings may be formed. Good.
- a pixel electrode 61 is formed by performing a step of forming a resist pattern by a droplet jetting method and an etching step.
- an active matrix substrate composed of a pixel portion including a reverse-square TFT and a storage capacitor and a terminal portion.
- an alignment film 623 is formed on the active matrix substrate, and a rubbing process is performed.
- a columnar spacer 602 for maintaining a substrate interval is formed at a desired position by patterning an organic shelf film such as an acrylic resin film. Formed.
- spherical spacers may be sprayed on the entire surface of the substrate.
- the alignment film 623 may be formed by a droplet spray method.
- a counter substrate 65 is prepared.
- the opposite substrate 650 is provided with a color filter 620 in which a coloring layer and a light shielding layer are arranged corresponding to each pixel. Further, a flattening film 651 covering the color filter 62 is provided. Next, an opposing electrode 621 made of a transparent conductive film is formed on the planarizing film 651 at a position overlapping with the pixel portion, and an alignment film 622 is formed on the entire surface of the opposing substrate 65, and rubbing is performed. Perform processing.
- the liquid crystal is jetted under reduced pressure to a region surrounded by the sealing material 607 by a droplet jetting method.
- the active matrix substrate and the counter substrate 65 are bonded together with a sealing material 607 under reduced pressure without touching the atmosphere.
- a filler (not shown) is mixed in the sealing material 607, and the two substrates are bonded at a uniform interval by the filler and the columnar spacer 602.
- an active matrix liquid crystal display device is completed. Then, if necessary, the active matrix substrate or the opposing substrate is cut into a desired shape. Further, an optical film such as a polarizing plate 603 is hardly provided by using a known technique. Then, an FPC is attached using a known technique.
- the knock light 604 and the light guide plate 605 are provided on the liquid crystal module obtained by the above steps and covered with the cover 606, the active matrix type liquid crystal whose partial cross-sectional view is shown in FIG.
- the display device (3 ⁇ 4 type) is completed. The cover and the liquid crystal module are fixed using an adhesive or an organic resin.
- the polarizing plate 603 is attached to both the active matrix substrate and the counter substrate.
- a transmission type is shown, but there is no particular limitation, and a reflection type or semi-transmission type liquid crystal display device can also be manufactured.
- a metal film having high light reflectance typically a material film containing aluminum or silver as a main component, a stacked film thereof, or the like may be used as the pixel electrode.
- FIG. 11 (B) a top view of the liquid crystal module is shown in FIG. 11 (B), and a top view of the liquid crystal module different from FIG. 11 (B) is shown in FIG. 11 (C).
- 501 is an active matrix substrate
- 506 is a counter substrate
- 504 is a display unit
- 505 is an FPC
- 507 is a sealing material.
- a liquid crystal is ejected by a droplet ejection method, and a pair of substrates 501 and 506 are bonded with a sealing material 507.
- the TFT obtained by this embodiment has a small field-effect mobility; however, when mass-produced using a large-area substrate, the cost for the manufacturing process can be reduced.
- the liquid crystal When a liquid crystal is ejected by the droplet ejection method and a pair of substrates is bonded, the liquid crystal can be held between the pair of substrates regardless of the substrate size.
- a display device provided with a liquid crystal panel having the above can be manufactured.
- an active layer is formed of a semiconductor film having a crystal structure by crystallizing an amorphous semiconductor film by performing a known crystallization process, typically a polysilicon film
- a TFT having a high field-effect mobility is used. Therefore, not only a pixel portion but also a driving circuit having a CMOS circuit can be manufactured on the same substrate. In addition to the driver circuit, CPU and the like can be manufactured on the same substrate.
- a TFT having an active layer made of a polysilicon film is used, a liquid crystal module as shown in FIG. 11C can be manufactured. In FIG.
- 501 is an active matrix substrate
- 505 is an FPC
- 506 is a counter substrate
- 510 is a source driver
- 508 and 509 are gate drivers
- 504 is a pixel portion
- 511 is a first seal material
- 512 is a second seal material.
- a liquid crystal is ejected by a droplet ejection method, and a pair of substrates 501 and 506 are attached to each other with a first sealing material 512 and a second sealing material 506. I have. Since liquid crystal is not required for the drivers 508 to 510, only the display section 504 holds liquid crystal, and the second sealing material 511 is provided to reinforce the entire panel. I have.
- a light-emitting element has a structure in which an electroluminescent layer (actually, various types of layers such as an electron transport layer exist, but is collectively referred to as an electroluminescent layer here) between a pair of electrodes.
- a method for manufacturing the electroluminescent layer by a droplet jetting method has already been put to practical use. That is, if the composition injected from the head is changed or the head filled with the composition is replaced, continuous processing becomes possible.
- the light-emitting element is a self-luminous type flat display, it is a backlight device and is not limited by a viewing angle. In addition, contrast and The response speed is significantly better. Therefore, it can be used not only as a portable terminal but also as a large display device.
- Example 1 This example describes a process for manufacturing a thin film transistor and a capacitor using the present invention.
- Figures 13 and 14 show cross-sectional views of this fabrication process, and
- Figure 15 shows a top view.
- a gate electrode (gate wiring) 901 and a capacitor electrode (capacity wiring) 902 are formed on a substrate 101 (FIGS. 13A and 15A).
- a transparent substrate made of glass, plastic, or the like is used as the substrate 101.
- the gate electrode 91 and the capacitor electrode 102 are formed of the same layer, and are formed by laminating aluminum (A 1) containing neodymium (Nd) and molybdenum (Mo). After that, selective processing is performed locally. In this embodiment, since the selective processing is performed, a photolithographic process using a photomask is not required, and the manufacturing process can be greatly simplified.
- the gate electrode 901 and the capacitor electrode 902 may be made of a conductive material such as chrome (Cr) in addition to aluminum (A 1) containing neodymium (Nd). May be used.
- an insulating film (gate insulating film) 903 covering the gate electrode 901 and the capacitor electrode 902 is formed (FIGS. 13B and 15B).
- an insulating film such as a silicon nitride film or a silicon oxide film, or a film in which a silicon nitride film, an oxidized silicon film, or the like is stacked is used.
- a semiconductor film 904 having an amorphous structure is locally formed on the insulating film 903 by selective processing. In this embodiment, a photomask is used to perform the selective processing. It is possible to greatly simplify the manufacturing process that requires the required photolithographic process.
- a protective film 905 is formed on a portion of the semiconductor film 904 to be a channel region of the TFT. The protective film 905 is formed by locally performing selective processing on a thigh film such as a silicon nitride film.
- N-type semiconductor film FGS. 13C and 15C.
- conductive films 908 and 909 in which molybdenum (Mo), aluminum (A1), and molybdenum (Mo) are sequentially laminated are formed by locally performing selective processing.
- the conductive films 908 and 909 as a mask the N-type semiconductor film is etched to form N-type semiconductor layers 906 and 907.
- a rising film 910 made of a silicon nitride film or a silicon oxide film is formed on the entire surface above the conductive films 908 and 909 (FIGS. 13D and 15D). .
- a contact hole penetrating through the insulating film 910 and reaching the wiring 909 is formed.
- the contact hole is formed using the method described in the second embodiment.
- the pixel electrode 911 is formed by locally selectively processing a transparent conductive film such as ITO (FIG. 15 (E)) o
- an alignment film 912 is formed on the pixel electrode 911 (FIG. 14). Subsequently, after bonding the opposing substrate 918 on which the alignment film 915, the opposing electrode 916 and the light shielding film 917 are formed, the liquid crystal material 913 is injected to complete the display panel. . The gap between the substrate 101 and the counter substrate 918 is held by the spacer 914.
- a transistor and a capacitor can be formed. According to this embodiment mode, manufacturing can be performed without using a photolithographic process, so that a significant reduction in a manufacturing process and a reduction in manufacturing cost can be realized.
- Example 1 In this example, an example of a manufacturing procedure of a light-emitting device having an EL element will be described with reference to FIGS.
- the light emission mechanism of an EL element is as follows.By applying a voltage across an organic compound layer between a pair of electrodes, electrons injected from a cathode made of a material with a small work function and holes injected from an anode are It is said that a molecular exciton is recombined at the emission center in the organic compound layer to form a molecular exciton, and when the molecular exciton returns to the ground state, it emits energy and emits light. Singlet excitation and triplet excitation are known as excited states, and light emission is considered to be possible through either excited state.
- Light emitting devices formed by arranging such EL elements in a matrix form include passive matrix driving (simple matrix type) and active matrix driving (active matrix driving) in which a switch is provided for each pixel (or one dot). It is possible to use a driving method such as a matrix type.
- a TFT (not shown) is fabricated on a substrate 150 having a rising surface.
- an N-type TFT or a P-type TFT may be manufactured by a known method.
- the first electrode 15 1 serving as the anode is The electrode is formed so as to partially overlap with an electrode (not shown).
- the first electrode 151 a large conductive film material work function - with (ITO, ⁇ ⁇ 2 0 3 ⁇ , ⁇ etc.), formed by I Nkujietsu Bok method.
- a solution containing an insulating material is selectively jetted by an ink-jet method to form a partition wall, an object, a barrier, a bank, etc. 152a (FIG. 16A).
- the partition wall 152a covers the end of the first electrode 151, the wiring, and the electrode, and isolates between the electrodes.
- a photosensitive or non-photosensitive organic material polyimide, acrylic, polyamide, polyimide amide, resist, or benzocyclobutene obtained by a coating method, or a laminate of these materials can be used. it can.
- the partition wall 152a either a negative type which becomes insoluble in an etchant by photosensitive light or a positive type which becomes soluble in an etchant by light can be used.
- plasma processing is selectively performed using the nozzle 12 (FIG. 16B).
- the shape of the partition is adjusted by this plasma treatment.
- a curved surface having a curvature (a radius of curvature (0.2 m to 3 m)) is formed at the upper end or the lower end of the partition 152b.
- a layer 153 containing an organic compound is selectively formed over the first electrode (anode) 151 by an inkjet method.
- a full color display can be obtained by selectively forming a layer containing an organic compound that can emit R and B light.
- a second electrode (cathode) 154 is formed on the layer 153 containing the organic compound (liquor 16 (C)).
- the second electrode (cathode) is also preferably formed by an inkjet method.
- a material having a small work function Al, Ag, Li, Ca, or an alloy of these materials, Mg Ag, M gln, AlLi, CaF 2 , or CaN).
- An EL device consisting of 54 is formed.
- a protective film (not shown) is provided for sealing the light emitting element, or the light emitting element is sealed with a sealing substrate (not shown) or a sealing can (not shown).
- a light-emitting element in which a layer containing an organic compound is formed on an anode and an anode is formed on the organic compound layer is provided. From the substrate to the TFT (hereinafter referred to as the bottom emission structure), but a layer containing an organic compound is formed on the anode, and the cathode, which is a transparent electrode, is formed on the layer containing the organic compound. (Hereinafter referred to as a top emission structure).
- FIG. 12A illustrates a display device (also referred to as a television receiver or a television receiver) having a large display unit of, for example, 20 to 80 inches.
- the present invention is directed to fabrication of the display unit 2003.
- Such large display devices are the fifth generation (1000X 1200mm) and the sixth generation (1400X1) in terms of productivity and cost.
- Fig. 12 (B) shows a notebook personal computer, which includes a main body 2201, a housing 2202, a display 2202, a keyboard 222, an external connection port 222, and a pointer. Including mouse 250. The present invention is applied to the manufacture of the display portion 222.
- Fig. 12 (C) shows a portable image playback device equipped with a recording medium (specifically, a DVD playback device). Main body 2401, housing 2402, display unit A240. 3, display section B 244, recording medium (DVD etc.) reading section 245, operation keys 246, speaker part 244, etc. are included.
- the display section A2403 mainly displays image information
- the display section B2404 mainly displays character information. In the present invention, these display sections A, B2403, 2400 Applied to fabrication of 4.
- the applicable range of the present invention is extremely wide, and the present invention can be applied to manufacture of electric appliances in all fields. Further, the present invention can be freely combined with the above-described embodiments and examples.
- Conductive layers 801 and 802 are selectively formed on substrate 800 made of glass, quartz, organic resin, etc. by CVD evaporation or sputtering (see Fig. 21 (A)). ).
- insulating layers 803 and 804 functioning as masks are formed over the conductive layers 801 and 802 by a droplet discharging method (see FIG. 21B). That is, the composition including the insulator is discharged to form the lower layers 803 and 804.
- the conductive layers 803, 8 are formed by the plasma generation means 805 using the rising layers 803, 804 as a mask. 04 is etched to form conductive layers 806 and 807 (see FIG. 21C).
- the rising layers 803 and 804 are asshinged by the plasma generating means 805 at or near the atmospheric pressure (see FIG. 21D). That is, the insulating layer 805 is removed.
- an insulating layer 808 functioning as a gate insulating film, a semiconductor layer 809, and a semiconductor layer 810 provided with one conductivity type are stacked on the substrate 800 so as to be in contact with the conductive layers 806 and 807 (FIG. 22).
- insulating layers 811, 812 functioning as masks are formed over the semiconductor layer 810 by a droplet discharge method.
- the semiconductor layers 809 and 810 are etched by the plasma generation means 805 at or near the atmospheric pressure using the layers 811 and 812 as a mask to form semiconductor layers 813 to 816 (FIG. 22B). reference).
- the insulating layers 811, 812 are ashed by the plasma generating means 805 at or near atmospheric pressure. That is, the insulating layers 811 and 812 are removed.
- conductive layers 817 to 820 are selectively formed over the substrate 800 by a CVD method, an evaporation method, or a sputtering method so as to be in contact with the semiconductor layers 815 and 816 (see FIG. 23A).
- the semiconductor layers 815 and 816 are etched at or near atmospheric pressure using the conductive layers 817 to 820 as masks (see FIG. 23A).
- the semiconductor layers 813 and 814 are slightly etched as shown.
- the present invention is characterized in that, first, a conductive layer is selectively formed by a CVD method, a vapor deposition method or a sputtering method, second, an insulating layer functioning as a resist mask is formed by a droplet discharging method, and The point at which the insulating layer, the semiconductor layer, and the conductive layer are etched by the plasma generating means at or near the atmospheric pressure. Fourth , the plasma generating means at or near the atmospheric pressure. Thus, a total of four points, namely, the point where the insulating layer functioning as a resist mask is ashesed.
- the first feature that the conductive layer is selectively formed on the substrate without forming the conductive layer on the entire surface of the substrate improves the efficiency of material use.
- the second feature of selectively forming a resist mask on the substrate without forming a resist mask on the entire surface of the substrate improves the material use efficiency. Therefore, the first and second features realize a significant reduction in manufacturing cost. In addition, the third and fourth features eliminate the need for vacuum equipment, thus reducing manufacturing time and manufacturing cost. Further, the plasma generating means includes first and second electrodes, wherein the first electrode surrounds the periphery of the second electrode, and has a nozzle-shaped gas supply port at its tip. When a plurality of cylindrical members having a plurality of cylindrical members are arranged in a uniaxial direction, gas can be supplied selectively, thereby improving gas use efficiency.
- a composition in which metal fine particles are dispersed in an organic solvent is used.
- the metal fine particles having an average particle diameter of 1 to 50 nm, preferably 3 to 7 nm are used.
- they are silver or gold fine particles, the surface of which is coated with a dispersant such as amine, alcohol, or thiol.
- a dispersant such as amine, alcohol, or thiol.
- the organic solvent is a phenolic resin, an epoxy resin, or the like, and a thermosetting or photocurable one is used.
- the viscosity of the composition may be adjusted by adding a thixotropic agent or a diluting solvent.
- the organic solvent is cured by a heat treatment or a light irradiation treatment of the composition discharged in an appropriate amount onto the surface to be formed by the droplet discharge means.
- Metal shrinkage due to volume shrinkage accompanying curing of organic solvent The particles come into contact with each other, and fusion and adhesion are promoted. That is, a wiring is formed in which metal fine particles having an average particle diameter of 1 to 50 nm, preferably 3 to 7 nm are fused or fused.
- B $ bonding or fusion it is possible to realize a reduction in the resistance of the wiring.
- the composition by forming a conductive pattern using such a composition, it becomes easy to form a wiring pattern having a line width of about 1 to about I0 m. Similarly, even if the diameter of the contact hole is about 1 to about L0 m, the composition can be filled therein. That is, a multilayer wiring structure can be formed with a fine wiring pattern.
- Example 9 can be combined with any of Examples 1 to 8.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020117023753A KR101415131B1 (ko) | 2003-02-05 | 2004-01-30 | 레지스트 패턴의 형성방법 및 반도체 장치의 제작방법 |
JP2004564058A JP4437544B2 (ja) | 2003-02-05 | 2004-01-30 | 半導体装置の作製方法 |
EP04706799A EP1592053B1 (en) | 2003-02-05 | 2004-01-30 | Wiring fabricating method |
KR1020057013264A KR101061891B1 (ko) | 2003-02-05 | 2004-01-30 | 배선의 제작 방법 |
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KR101193015B1 (ko) * | 2003-02-06 | 2012-10-22 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 플라즈마 장치 |
KR101032338B1 (ko) * | 2003-02-06 | 2011-05-06 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 표시장치의 제작방법 |
KR101186919B1 (ko) * | 2003-02-06 | 2012-10-02 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 표시장치의 제조 방법 |
-
2004
- 2004-01-30 KR KR1020117004972A patent/KR20110038165A/ko not_active Application Discontinuation
- 2004-01-30 EP EP04706799A patent/EP1592053B1/en not_active Expired - Lifetime
- 2004-01-30 KR KR1020117023753A patent/KR101415131B1/ko active IP Right Grant
- 2004-01-30 KR KR1020087025724A patent/KR20080106361A/ko not_active Application Discontinuation
- 2004-01-30 WO PCT/JP2004/000897 patent/WO2004070820A1/ja active Application Filing
- 2004-01-30 KR KR1020057013264A patent/KR101061891B1/ko active IP Right Grant
- 2004-01-30 JP JP2004564058A patent/JP4437544B2/ja not_active Expired - Fee Related
- 2004-02-03 TW TW097137232A patent/TWI428988B/zh not_active IP Right Cessation
- 2004-02-03 TW TW093102424A patent/TWI369738B/zh not_active IP Right Cessation
- 2004-02-03 US US10/769,852 patent/US7189654B2/en not_active Expired - Fee Related
-
2007
- 2007-03-08 US US11/715,468 patent/US8053174B2/en not_active Expired - Fee Related
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2008
- 2008-10-03 US US12/245,003 patent/US8460857B2/en not_active Expired - Fee Related
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US7510893B2 (en) | 2003-02-05 | 2009-03-31 | Semiconductor Energy Laboratory Co., Ltd. | Method of manufacturing a display device using droplet emitting means |
US8460857B2 (en) | 2003-02-05 | 2013-06-11 | Semiconductor Energy Laboratory Co., Ltd. | Manufacturing method for wiring |
US8053174B2 (en) | 2003-02-05 | 2011-11-08 | Semiconductor Energy Laboratory Co., Ltd. | Manufacturing method for wiring |
US7176069B2 (en) | 2003-02-05 | 2007-02-13 | Semiconductor Energy Laboratory Co., Ltd. | Manufacture method of display device |
US7189654B2 (en) | 2003-02-05 | 2007-03-13 | Semiconductor Energy Laboratory Co., Ltd. | Manufacturing method for wiring |
US7736955B2 (en) | 2003-02-05 | 2010-06-15 | Semiconductor Energy Laboratory Co., Ltd. | Manufacture method of display device by using droplet discharge method |
US8569119B2 (en) | 2003-02-06 | 2013-10-29 | Semiconductor Energy Laboratory Co., Ltd. | Method for producing semiconductor device and display device |
US7858453B2 (en) | 2003-02-06 | 2010-12-28 | Semiconductor Energy Laboratory Co., Ltd. | Method of manufacturing semiconductor device and display device utilizing solution ejector |
US7922819B2 (en) | 2003-02-06 | 2011-04-12 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor manufacturing device |
US7399704B2 (en) | 2003-10-02 | 2008-07-15 | Semiconductor Energy Laboratory Co., Ltd. | Fabrication method of a semiconductor device using liquid repellent film |
US7510905B2 (en) | 2004-01-29 | 2009-03-31 | Semiconductor Energy Laboratory Co., Ltd. | Forming method of contact hole, and manufacturing method of semiconductor device, liquid crystal display device and EL display device |
US7655499B2 (en) | 2004-01-29 | 2010-02-02 | Semiconductor Energy Laboratory Co., Ltd. | Forming method of contact hole and manufacturing method of semiconductor device, liquid crystal display device and EL display device |
US7416977B2 (en) | 2004-04-28 | 2008-08-26 | Semiconductor Energy Laboratory Co., Ltd. | Method for manufacturing display device, liquid crystal television, and EL television |
JP2008511146A (ja) * | 2004-08-24 | 2008-04-10 | オーティービー・グループ・ビー.ブイ. | 薄膜電子デバイスをつくるためのインライン式の方法 |
JP2006073838A (ja) * | 2004-09-03 | 2006-03-16 | Sanyo Electric Co Ltd | 半導体装置の製造方法 |
WO2006064161A1 (fr) * | 2004-12-13 | 2006-06-22 | Saint-Gobain Glass France | Procede et installation pour le traitement d'un substrat verrier incorporant une ligne magnetron et un dispositif generant un plasma a pression atmospherique. |
FR2879188A1 (fr) * | 2004-12-13 | 2006-06-16 | Saint Gobain | Procede et installation pour le traitement d'un substrat verrier incorporant une ligne magnetron et un dispositif generant un plasma a pression atmospherique. |
US8395746B2 (en) | 2006-01-31 | 2013-03-12 | Semiconductor Energy Laboratory Co., Ltd. | Display device |
US8773632B2 (en) | 2006-01-31 | 2014-07-08 | Semiconductor Energy Laboratory Co., Ltd. | Display device |
US9235071B2 (en) | 2006-01-31 | 2016-01-12 | Semiconductor Energy Laboratory Co., Ltd. | Display device |
WO2011043163A1 (en) * | 2009-10-05 | 2011-04-14 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and manufacturing method thereof |
US9627198B2 (en) | 2009-10-05 | 2017-04-18 | Semiconductor Energy Laboratory Co., Ltd. | Method for manufacturing thin film semiconductor device |
US9754784B2 (en) | 2009-10-05 | 2017-09-05 | Semiconductor Energy Laboratory Co., Ltd. | Method for manufacturing oxide semiconductor device |
US10566459B2 (en) | 2009-10-30 | 2020-02-18 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device having a first region comprising silicon, oxygen and at least one metal element formed between an oxide semiconductor layer and an insulating layer |
JP2017182997A (ja) * | 2016-03-29 | 2017-10-05 | 芝浦メカトロニクス株式会社 | 大気圧プラズマ発生装置 |
Also Published As
Publication number | Publication date |
---|---|
EP1592053A1 (en) | 2005-11-02 |
JPWO2004070820A1 (ja) | 2006-05-25 |
US7189654B2 (en) | 2007-03-13 |
KR20110126750A (ko) | 2011-11-23 |
US8053174B2 (en) | 2011-11-08 |
KR20050095774A (ko) | 2005-09-30 |
KR20080106361A (ko) | 2008-12-04 |
TWI369738B (en) | 2012-08-01 |
US8460857B2 (en) | 2013-06-11 |
US20050011752A1 (en) | 2005-01-20 |
TW200919584A (en) | 2009-05-01 |
KR101415131B1 (ko) | 2014-07-04 |
JP4437544B2 (ja) | 2010-03-24 |
TWI428988B (zh) | 2014-03-01 |
US20070167023A1 (en) | 2007-07-19 |
EP1592053B1 (en) | 2011-08-24 |
KR101061891B1 (ko) | 2011-09-02 |
KR20110038165A (ko) | 2011-04-13 |
EP1592053A4 (en) | 2010-01-27 |
TW200501269A (en) | 2005-01-01 |
US20090042394A1 (en) | 2009-02-12 |
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