WO2006041100A1 - 露光装置及びデバイス製造方法 - Google Patents
露光装置及びデバイス製造方法 Download PDFInfo
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- WO2006041100A1 WO2006041100A1 PCT/JP2005/018803 JP2005018803W WO2006041100A1 WO 2006041100 A1 WO2006041100 A1 WO 2006041100A1 JP 2005018803 W JP2005018803 W JP 2005018803W WO 2006041100 A1 WO2006041100 A1 WO 2006041100A1
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- Prior art keywords
- stage
- liquid
- substrate
- exposure apparatus
- light
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/0271—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers
- H01L21/0273—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers characterised by the treatment of photoresist layers
- H01L21/0274—Photolithographic processes
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/20—Exposure; Apparatus therefor
- G03F7/2041—Exposure; Apparatus therefor in the presence of a fluid, e.g. immersion; using fluid cooling means
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/70216—Mask projection systems
- G03F7/70341—Details of immersion lithography aspects, e.g. exposure media or control of immersion liquid supply
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/70483—Information management; Active and passive control; Testing; Wafer monitoring, e.g. pattern monitoring
- G03F7/70491—Information management, e.g. software; Active and passive control, e.g. details of controlling exposure processes or exposure tool monitoring processes
- G03F7/70525—Controlling normal operating mode, e.g. matching different apparatus, remote control or prediction of failure
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/70691—Handling of masks or workpieces
- G03F7/70716—Stages
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/70691—Handling of masks or workpieces
- G03F7/70733—Handling masks and workpieces, e.g. exchange of workpiece or mask, transport of workpiece or mask
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/708—Construction of apparatus, e.g. environment aspects, hygiene aspects or materials
- G03F7/70991—Connection with other apparatus, e.g. multiple exposure stations, particular arrangement of exposure apparatus and pre-exposure and/or post-exposure apparatus; Shared apparatus, e.g. having shared radiation source, shared mask or workpiece stage, shared base-plate; Utilities, e.g. cable, pipe or wireless arrangements for data, power, fluids or vacuum
Definitions
- the present invention relates to an exposure apparatus that exposes a substrate through an optical system and a device manufacturing method.
- an exposure apparatus that projects a pattern formed on a mask onto a photosensitive substrate is used.
- This exposure apparatus has a mask stage for supporting a mask and a substrate stage for supporting a substrate, and projects a mask pattern image onto a substrate via a projection optical system while sequentially moving the mask stage and the substrate stage. It is.
- Some of these exposure apparatuses include two stages that can move independently of each other on the image plane side of the projection optical system.
- miniaturization of patterns formed on a substrate is required in order to increase the density of devices. In order to meet this demand, it is desired to further increase the resolution of the exposure apparatus.
- Patent Document 1 As one of means for realizing the high resolution, as shown in Patent Document 1 below, a liquid is filled between the projection optical system and the substrate to form an immersion region, An immersion exposure apparatus has been devised that performs exposure processing of a substrate through liquid in the immersion area.
- Patent Document 1 Pamphlet of International Publication No. 99Z49504
- the present invention has been made in view of such circumstances, and provides an exposure apparatus and a device manufacturing method capable of preventing the spread of damage caused by leaked liquid and maintaining exposure accuracy and measurement accuracy. With the goal.
- the present invention employs the following configurations corresponding to FIGS. 1 to 8 shown in the embodiments.
- the reference numerals in parentheses attached to each element are merely examples of the element and do not limit each element.
- the image plane on the image plane side of the projection optical system (PL) is substantially the same as the image plane.
- Liquid immersion mechanism such as 70 that forms a liquid (LQ) liquid immersion area (LR) on the upper surface (Fl, F2) of at least one of the first stage (ST1) and second stage (ST2) And the first stage (ST1) and the second stage (ST2) together, the liquid (LQ) is placed between the projection optical system (PL) and the upper surface (Fl, F2) of at least one stage.
- LQ liquid immersion area
- the detection device for detecting the leaked liquid when the detection device detects the liquid, it is possible to quickly take an appropriate measure for suppressing the expansion of damage caused by the leaked liquid. Therefore, good exposure accuracy and measurement accuracy can be maintained.
- a device is manufactured using the exposure apparatus (EX) of the above aspect.
- a method is provided.
- FIG. 1 is a schematic block diagram that shows an exposure apparatus according to a first embodiment.
- FIG. 2 A plan view of the substrate stage and the measurement stage in which the upward force is also viewed.
- FIG. 3A is a diagram for explaining operations of a substrate stage and a measurement stage.
- FIG. 3B is a diagram for explaining the operation of the substrate stage and the measurement stage.
- FIG. 4A is a diagram for explaining operations of a substrate stage and a measurement stage.
- FIG. 4B is a diagram for explaining the operation of the substrate stage and the measurement stage.
- FIG. 5 is a diagram for explaining a state in which the detection device detects a liquid.
- FIG. 6 is an enlarged view of a main part of an exposure apparatus according to a second embodiment.
- FIG. 7 is a schematic block diagram that shows an exposure apparatus according to a third embodiment.
- FIG. 8 is a flowchart showing an example of a microdevice manufacturing process.
- FIG. 1 is a schematic block diagram that shows an exposure apparatus according to the first embodiment.
- the exposure apparatus EX is equipped with a mask stage MST that can move while holding the mask M, a substrate stage ST1 that can move while holding the substrate P, and a measuring instrument that performs measurements related to exposure processing.
- Movable measurement stage ST2 and mask stage MST hold the illumination optical system IL that illuminates the mask M with exposure light EL, and the pattern image of the mask M illuminated with exposure light EL is the substrate stage ST1.
- a projection optical system PL that projects onto the substrate P and a control device CONT that controls the overall operation of the exposure apparatus EX.
- Each of the substrate stage ST1 and the measurement stage ST2 is supported so as to be movable on the base member BP, and is movable independently of each other.
- the lower surface U1 of the substrate stage ST1 is provided with a gas bearing 41 for supporting the substrate stage ST1 in a non-contact manner with respect to the upper surface BT of the base member BP.
- the lower surface U2 of the measurement stage ST2 is provided with a gas bearing 42 for supporting the measurement stage ST2 in a non-contact manner with respect to the upper surface BT of the base member BP.
- Each of the substrate stage ST1 and the measurement stage ST2 can move independently of each other in a two-dimensional plane (in the XY plane) substantially parallel to the image plane on the image plane side of the projection optical system PL. .
- the exposure apparatus EX of the present embodiment is an immersion exposure apparatus to which an immersion method is applied in order to improve the resolution by substantially shortening the exposure wavelength and to substantially increase the depth of focus.
- the exposure apparatus EX also includes an immersion mechanism 1 for forming an immersion area LR for the liquid LQ on the image plane side of the projection optical system PL.
- the liquid immersion mechanism 1 is provided in the vicinity of the image plane side of the projection optical system PL, and is provided in the nozzle member 70 having a supply port 12 for supplying the liquid LQ and a recovery port 22 for recovering the liquid LQ, and the nozzle member 70.
- the liquid supply mechanism 10 that supplies the liquid LQ to the image plane side of the projection optical system PL through the supply port 12 and the liquid on the image plane side of the projection optical system PL through the recovery port 22 provided in the nozzle member 70 And a liquid recovery mechanism 20 for recovering LQ.
- the nozzle member 70 is formed in an annular shape so as to surround the image surface side tip of the projection optical system PL. While transferring at least the pattern image of the mask M onto the substrate P, the exposure apparatus EX uses a liquid LQ supplied from the liquid supply mechanism 10 to a part of the substrate P including the projection area AR of the projection optical system PL.
- a liquid LQ immersion area LR that is larger than the projection area AR and smaller than the substrate P is locally formed.
- the exposure apparatus EX is an image plane of the projection optical system PL.
- the local immersion method is used to fill the optical path space between the first optical element LS 1 closest to LS 1 and a part of the surface of the substrate P arranged on the image plane side of the projection optical system PL with the liquid LQ.
- the pattern of the mask M is projected onto the substrate P by irradiating the substrate P with the exposure light EL that has passed through the mask M via the liquid LQ between the optical system PL and the substrate P and the projection optical system PL. Exposure.
- the mask M and the substrate P as the exposure apparatus EX are synchronously moved in the respective scanning directions in different directions (reverse directions), and an image of the pattern formed on the mask M is applied to the substrate P.
- An explanation will be given by taking as an example the case of using a scanning exposure apparatus (so-called scanning stepper) for projection.
- the synchronous movement direction (scanning direction) between the mask M and the substrate P in the horizontal plane is the X-axis direction
- the direction orthogonal to the X-axis direction in the horizontal plane is the Y-axis direction (non-scanning direction)
- the X-axis and The direction perpendicular to the Y-axis direction and coincident with the optical axis AX of the projection optical system PL is defined as the Z-axis direction.
- the rotation (tilt) directions around the X, Y, and Z axes are defined as 0 X, ⁇ , and ⁇ Z directions, respectively.
- the “substrate” includes a substrate in which a photosensitive material (resist) is coated on a base material such as a semiconductor wafer, and the “mask” includes a reticle on which a device pattern to be reduced and projected on the substrate is formed.
- a photosensitive material resist
- a mask includes a reticle on which a device pattern to be reduced and projected on the substrate is formed.
- Each of the substrate stage ST1 and the measurement stage ST2 is movable by driving a drive mechanism SD including a linear motor and the like.
- the control device CONT controls the drive mechanism SD, so that the substrate stage ST1 and the measurement stage ST2 are within a predetermined area including directly under the projection optical system PL in a state where the substrate stage ST1 and the measurement stage ST2 are close to or in contact with each other. And can be moved together in the XY plane.
- the controller CONT moves the substrate stage ST1 and the measurement stage ST2 together so that the projection optical system PL and at least one of the upper surface F1 of the substrate stage ST1 and the upper surface F2 of the measurement stage ST2 are located. With the liquid LQ held, the immersion area LR can be moved between the upper surface F1 of the substrate stage ST1 and the upper surface F2 of the second stage ST2.
- an overhang portion HI that protrudes outward from the central portion of the upper surface F1 of the substrate stage ST1 is provided on the upper portion of the side surface of the substrate stage ST1.
- the upper surface of this overhang portion HI is also a part of the upper surface F1 of the substrate stage ST1.
- the upper part of the side surface of the measurement stage ST2 is located in the upper surface F2 of the measurement stage ST2.
- An overhang H2 projecting outward from the central part is provided.
- the upper surface of this overhang H2 is also a part of the upper surface F2 of the measurement stage ST2.
- the area on the + Y side of the upper surface F1 of the substrate stage ST1 and the Y of the upper surface F2 of the measurement stage ST2 Adjacent or in contact with the side area.
- the state in which the substrate stage ST1 and the measurement stage ST2 are "close” means that the immersion region LR is moved between the upper surface F1 of the substrate stage ST1 and the upper surface F2 of the second stage ST2.
- the exposure apparatus EX includes one upper surface F1 of the substrate stage ST1 and the measurement stage ST2.
- a detection device 60 is provided for detecting the liquid LQ leaked from between the substrate stage ST1 and the measurement stage ST2 when the immersion region LR is moved from (F2) to the other upper surface F2 (F1).
- the substrate stage ST1 and the measurement stage ST2 are controlled to move together in a state where they are close to or in contact with each other while maintaining a relative positional relationship so that the liquid LQ does not leak. If the liquid LQ leaks, the detection device 60 can detect the leaked liquid LQ.
- the detection device 60 includes a light projecting unit 61 that emits the detection light La, and a light receiving unit 62 that is disposed at a predetermined position with respect to the detection light La.
- the light projecting unit 61 is provided on the second side surface T2 of the measurement stage ST2.
- the light receiving unit 62 is provided on the first side surface T1 of the substrate stage ST1.
- the first side surface T1 of the substrate stage ST1 is a region below the overhang portion HI and is a surface facing the + Y side.
- the second side surface T2 of the measurement stage ST2 is a region below the overhang portion H2 and is a surface facing the ⁇ Y side.
- the first side surface T1 of the substrate stage ST1 and the second side surface T2 of the measurement stage ST2 face each other.
- the side surface 42T of the gas bearing 42 that supports the measurement stage ST2 in a non-contact manner with respect to the base member BP is also provided with a light projecting unit 63 that emits the detection light Lb, and the substrate stage ST1 is attached to the base member BP.
- a light receiving portion 64 corresponding to the light projecting portion 63 is provided on the side surface 41T of the gas bearing 41 that is supported in a non-contact manner.
- Side 41T of gas bearing 41 is the surface facing the + Y side.
- the side surface 42T of the gas bearing 41 faces the Y side, and the side surface 41T of the gas bearing 41 and the side surface 42 of the gas bearing 42 face each other.
- the substrate stage ST1 and the measurement stage ST2 are provided with the overhang portions HI and H2, respectively, even when the upper surface F1 of the substrate stage ST1 and the upper surface F2 of the measurement stage ST2 are close to or in contact with each other.
- the second side surface T2 provided with the light projecting unit 61 and the first side surface T1 provided with the light receiving unit 62 are separated by a predetermined distance, and the side surface 42T provided with the light projecting unit 63 and the light receiving unit 64 are provided. Separated from the other side 41T by a predetermined distance.
- the illumination optical system IL includes an exposure light source, an optical integrator that equalizes the illuminance of a light beam emitted from the exposure light source, a condenser lens that collects exposure light EL from the optical integrator, a relay lens system, and an exposure. It has a field stop to set the illumination area on the mask M with light EL. The predetermined illumination area on the mask M is illuminated with the exposure light EL having a uniform illuminance distribution by the illumination optical system IL.
- Illumination optical system IL force Emission exposure light EL includes, for example, emission lines emitted from mercury lamps (g-line, h-line, i-line) and far ultraviolet light (DUV) such as KrF excimer laser light (wavelength 248 nm) Light), vacuum ultraviolet light (VUV light) such as ArF excimer laser light (wavelength 193 nm) and F laser light (wavelength 157 nm)
- pure water is used as the liquid LQ.
- Pure water is not only ArF excimer laser light, but also far ultraviolet light (DUV light) such as emission lines (g-line, h-line, i-line) emitted from mercury lamp force and KrF excimer laser light (wavelength 248nm). Can also be transmitted.
- DUV light far ultraviolet light
- emission lines g-line, h-line, i-line
- KrF excimer laser light wavelength 248nm
- Mask stage MST is movable while holding mask M.
- the mask stage MST holds the mask M by vacuum suction (or electrostatic suction).
- Mask stage MST 2-dimensional movement in the plane perpendicular to the optical axis AX of the projection optical system PL, that is, in the XY plane, while holding the mask M by driving the drive mechanism MD including the linear motor controlled by the control device CONT Possible and can be rotated slightly in the ⁇ Z direction.
- a movable mirror 31 is provided on the mask stage MST.
- a laser interferometer 32 is provided at a position facing the movable mirror 31.
- the position of the mask M on the mask stage MST in the two-dimensional direction and the rotation angle in the ⁇ Z direction are measured in real time by the laser interferometer 32.
- the measurement result of the laser interferometer 32 is output to the control device C ONT.
- the control device CONT drives the drive mechanism MD based on the measurement result of the laser interferometer 32, and controls the position of the mask M held by the mask stage MST.
- the projection optical system PL projects the pattern of the mask M onto the substrate ⁇ at a predetermined projection magnification ⁇ , and is composed of a plurality of optical elements, which are held by the lens barrel ⁇ . It is.
- the projection optical system PL is a reduction system in which the projection magnification j8 is 1Z4, 1Z5, or 1Z8, for example.
- the projection optical system PL may be either an equal magnification system or an enlargement system.
- the first optical element LSI is exposed from the barrel PK closest to the image plane of the projection optical system PL.
- the substrate stage ST1 has a substrate holder PH that holds the substrate P, and the substrate holder PH can be moved on the image plane side of the projection optical system PL.
- the substrate holder PH holds the substrate P by, for example, vacuum adsorption.
- a recess 36 is provided on the substrate stage ST1, and a substrate holder PH for holding the substrate P is disposed in the recess 36.
- the upper surface F1 around the recess 36 of the substrate stage ST1 is a flat surface (flat portion) that is almost the same height (flat surface) as the surface of the substrate P held by the substrate holder PH! / RU
- Substrate stage ST1 is an image plane of projection optical system PL in a state where substrate P is held via substrate holder PH by driving a drive mechanism SD including a linear motor and the like controlled by control device CONT. On the side, it can be moved two-dimensionally in the XY plane almost parallel to the image plane of the projection optical system PL and can be rotated slightly in the ⁇ Z direction. Furthermore, the substrate stage ST1 is also movable in the Z-axis direction, ⁇ X direction, and ⁇ Y direction. Therefore, the surface of the substrate P supported by the substrate stage ST1 has six degrees of freedom in the X-axis, Y-axis, Z-axis, 0 X, ⁇ ⁇ and ⁇ Z directions.
- a movable mirror 33 is provided on the side surface of the substrate stage ST1.
- a laser interferometer 34 is provided at a position facing the movable mirror 33. The position and rotation angle of the substrate P on the substrate stage ST1 in the two-dimensional direction are measured by the laser interferometer 34 in real time.
- the exposure apparatus EX is an oblique incidence method that detects surface position information of the surface of the substrate P supported by the substrate stage ST1, as disclosed in, for example, Japanese Patent Laid-Open No. 8-37149!
- a focus leveling detection system (not shown) is provided. The focus leveling detection system detects surface position information (position information in the Z-axis direction and inclination information of the substrate P in the ⁇ X and ⁇ Y directions).
- the focus / leveling detection system may employ a system using a capacitive sensor.
- the measurement result of the laser interferometer 34 is output to the control device CONT.
- the detection result of the focus leveling detection system is also output to the control device CONT.
- the control device CONT drives the drive mechanism SD based on the detection result of the focus leveling detection system, and controls the focus position (Z position) and tilt angle ( ⁇ X, ⁇ ⁇ ) of the substrate P surface. Is adjusted to the image plane of the projection optical system PL, and the position control of the substrate P in the X-axis direction, the Y-axis direction, and the ⁇ Z direction is performed based on the measurement result of the laser interferometer 34.
- Measurement stage ST2 is mounted with various measuring instruments (including measurement members) that perform measurements related to exposure processing, and is movable on the image plane side of projection optical system PL.
- a measuring instrument a reference mark plate in which a plurality of reference marks are formed, for example, as disclosed in Japanese Patent Laid-Open No. 5-21314, for example, disclosed in Japanese Patent Laid-Open No. 57-117238.
- the upper surface F2 of the measurement stage ST2 is a flat surface (flat part) that is almost the same height (flat surface) as the upper surface F1 of the substrate stage ST1!
- the present embodiment is used for measurement using the exposure light EL, corresponding to the immersion exposure for exposing the substrate P by the exposure light EL through the projection optical system PL and the liquid LQ.
- the exposure light EL is received through the body LQ.
- only a part of the optical system may be mounted on the measurement stage ST2, and the entire sensor may be placed on the measurement stage ST2.
- Measurement stage ST2 is a projection optical system on the image plane side of projection optical system PL in a state where a measuring instrument is mounted by driving a drive mechanism SD including a linear motor controlled by a control device CONT. It can move two-dimensionally in the XY plane almost parallel to the image plane of the PL and can rotate in the ⁇ Z direction. Furthermore, the measurement stage ST2 can move in the Z-axis direction, ⁇ X direction, and ⁇ Y direction. That is, the measurement stage ST2 can also move in directions of six degrees of freedom in the X axis, Y axis, Z axis, 0 X, ⁇ Y, and 0 Z directions, like the substrate stage ST1.
- a movable mirror 37 is provided on the side surface of the measurement stage ST2.
- a laser interferometer 38 is provided at a position facing the moving mirror 37. The position and rotation angle of the measurement stage ST2 in the two-dimensional direction are measured in real time by the laser interferometer 38.
- the movable mirrors 33 and 37 may be provided on the lower side surface of the force overhang portion provided in the overhang portions H1 and H2 of the stages ST1 and ST2. By doing so, even if the liquid LQ flows out from the upper surfaces Fl and F2, it is possible to prevent the liquid LQ from adhering to the movable mirrors 33 and 37 by the overhang portions Hl and H2.
- an off-axis alignment system ALG for detecting alignment marks on the substrate P and reference marks on the reference mark plate is provided.
- the alignment type ALG of this embodiment for example, disclosed in JP-A-4-65603, do not expose the photosensitive material on the substrate P, such as V !, and irradiate the target mark with a broadband detection light beam.
- the FIA (Field Image Alignment) method is used to measure the position of the mark by processing the captured image and processing the image signals.
- the liquid supply mechanism 10 is for supplying the liquid LQ to the image plane side of the projection optical system PL.
- the liquid supply unit 11 is capable of delivering the liquid LQ, and one end of the liquid supply unit 11 is connected to the liquid supply unit 11. And a supply pipe 13 to be provided. The other end of the supply pipe 13 is connected to the nozzle member 70. Inside the nozzle member 70, an internal flow path (supply flow path) that connects the other end of the supply pipe 13 and the supply port 12 is formed.
- the liquid supply unit 11 includes a tank that stores the liquid LQ, a pressure pump, a filter unit that removes foreign matter in the liquid LQ, and the like. The liquid supply operation of the liquid supply unit 11 is controlled by the control device CONT.
- the liquid recovery mechanism 20 is for recovering the liquid LQ on the image plane side of the projection optical system PL, and includes a liquid recovery unit 21 that can recover the liquid LQ, and one end of the liquid recovery unit 21. And a recovery pipe 23 for connecting the The other end of the recovery pipe 23 is connected to the nozzle member 70. Inside the nozzle member 70, an internal flow path (recovery flow path) that connects the other end of the recovery pipe 23 and the recovery port 22 is formed.
- the liquid recovery unit 21 includes, for example, a vacuum system (a suction device) such as a vacuum pump, a gas-liquid separator that separates the recovered liquid LQ and gas, and a tank that stores the recovered liquid LQ.
- the supply port 12 for supplying the liquid LQ and the recovery port 22 for recovering the liquid LQ are formed on the lower surface 70A of the nozzle member 70.
- the lower surface 70A of the nozzle member 70 is provided at a position facing the surface of the substrate P and the upper surfaces Fl and F2 of the stages ST1 and ST2.
- the nozzle member 70 is an annular member provided so as to surround the side surface of the first optical element LSI
- the supply port 12 is provided on the lower surface 70A of the nozzle member 70 on the first optical element LSI (projection) of the projection optical system PL.
- a plurality of optical systems PL are provided so as to surround the optical axis AX).
- the recovery port 22 is provided outside the supply port 12 with respect to the first optical element LSI on the lower surface 70A of the nozzle member 70, and is provided so as to surround the first optical element LSI and the supply port 12. It has been.
- the control device CONT uses the liquid supply mechanism 10 to predetermine the liquid LQ on the substrate P.
- a liquid LQ on the substrate P is recovered by using the liquid recovery mechanism 20 and a predetermined amount of the liquid LQ on the substrate P is recovered to locally form the liquid LQ immersion region LR on the substrate P.
- the control device CONT drives each of the liquid supply unit 11 and the liquid recovery unit 21.
- the liquid LQ is delivered from the liquid supply unit 11 under the control of the control device CONT
- the liquid LQ delivered from the liquid supply unit 11 flows through the supply pipe 13 and then the supply flow path of the nozzle member 70. And is supplied from the supply port 12 to the image plane side of the projection optical system PL.
- the liquid recovery unit 21 When the liquid recovery unit 21 is driven under the control of the control device CONT, the liquid LQ on the image plane side of the projection optical system PL flows into the recovery flow path of the nozzle member 70 via the recovery port 22. Then, after flowing through the recovery pipe 23, it is recovered by the liquid recovery unit 21.
- FIG. 2 is a view of the substrate stage ST1 and the measurement stage ST2 as viewed from above.
- the drive mechanism SD for driving the substrate stage ST1 and the measurement stage ST2 includes linear motors 80, 81, 82, 83, 84, and 85! /. Equipped with a pair of Y-axis linear guides 91 and 93 extending in the Y-axis direction. Each of the Y-axis linear guides 91 and 93 is arranged at a predetermined interval in the X-axis direction.
- Each of the Y-axis linear guides 91 and 93 includes, for example, a magnet unit incorporating a permanent magnet group composed of a plurality of sets of N-pole magnets and S-pole magnets arranged alternately at predetermined intervals along the Y-axis direction. It is constituted by.
- a magnet unit incorporating a permanent magnet group composed of a plurality of sets of N-pole magnets and S-pole magnets arranged alternately at predetermined intervals along the Y-axis direction. It is constituted by.
- two sliders 90 and 94 are supported so as to be movable in the Y-axis direction in a non-contact state.
- two sliders 92 and 95 are supported on the other Y-axis linear guide 93 so as to be movable in the Y-axis direction in a non-contact state.
- Each of the sliders 90, 92, 94, and 95 is constituted by a coil unit that incorporates, for example, armature coils arranged at predetermined intervals along the Y axis. That is, in the present embodiment, the moving coil type Y-axis linear motors 82 and 84 are configured by the sliders 90 and 94 formed of a coil unit and the Y-axis linear guide 91 formed of a magnet unit, respectively. Similarly, the sliders 92 and 95 and the Y-axis linear guide 93 constitute moving coil type Y-axis linear motors 83 and 85, respectively.
- the sliders 90 and 92 constituting the Y-axis linear motors 82 and 83 are fixed to one end and the other end in the longitudinal direction of the X-axis linear guide 87 extending in the X-axis direction.
- the sliders 94 and 95 that make up the Y-axis linear motors 84 and 85 are the X-axis linear gears that extend in the X-axis direction.
- the id 89 is fixed to one end and the other end in the longitudinal direction.
- the X-axis linear guide 87 can be moved in the Y-axis direction by the Y-axis linear motors 82 and 83, and the X-axis linear guide 89 can be moved in the Y-axis direction by the Y-axis linear motors 84 and 85.
- Each of the X-axis linear guides 87 and 89 is constituted by a coil unit that incorporates armature coils arranged at predetermined intervals along the X-axis direction, for example.
- the X-axis linear guide 89 is provided in an inserted state in an opening formed in the substrate stage ST1. Inside the opening of this substrate stage ST1, for example, a magnet having a permanent magnet group consisting of a plurality of sets of N-pole magnets and S-pole magnets arranged alternately at predetermined intervals along the X-axis direction.
- Unit 88 is provided inside the opening of this substrate stage ST1.
- the magnet unit 88 and the X-axis linear guide 89 constitute a moving magnet type X-axis linear motor 81 that drives the substrate stage ST1 in the X-axis direction.
- the X-axis linear guide 87 is provided in an inserted state in an opening formed in the measurement stage ST2.
- a magnet unit 86 is provided in the opening of the measurement stage ST2.
- the magnet unit 86 and the X-axis linear guide 87 constitute a moving magnet type X-axis linear motor 80 that drives the measurement stage ST2 in the X-axis direction.
- each of the substrate stage ST1 and the measurement stage ST2 is shown as a single stage.
- the XY stage is driven by a Y-axis linear motor, and the upper part of the XY stage. Equipped with a Z leveling drive mechanism (for example, a voice coil motor), and a Z tilt stage that is relatively finely driven in the Z-axis direction and 0 X and ⁇ Y directions with respect to the XY stage. ing.
- a substrate holder PH (see FIG. 1) that holds the substrate P is supported by the Z tilt stage.
- the control device CONT causes the measurement stage ST2 to wait at a predetermined standby position where it does not collide with the substrate stage ST1. And the control device CONT performs step-and-scan type immersion exposure on the substrate P supported by the substrate stage ST1, with the substrate stage ST1 and the measurement stage ST2 separated from each other.
- the controller CONT uses the immersion mechanism 1 to form the immersion region LR of the liquid LQ on the substrate stage ST1.
- the control device CONT moves the measurement stage ST2 using the drive mechanism SD, and as shown in FIG. 3A, the control device CONT moves to the substrate stage ST1. To bring measurement stage ST2 into contact (or close proximity).
- the control device CONT uses the drive mechanism SD to maintain the relative positional relationship between the substrate stage ST1 and the measurement stage ST2 in the Y-axis direction, and the substrate stage ST1 and the measurement stage ST2. Move in the Y direction at the same time. That is, the control device CONT makes the substrate stage ST1 and the measurement stage ST2 Y in a predetermined area including the position directly below the projection optical system PL in a state where the substrate stage ST1 and the measurement stage ST2 are in contact (or close proximity). Move together in the direction.
- the control device CONT moves the substrate stage ST1 and the measurement stage ST2 together to move the liquid LQ held between the first optical element LSI of the projection optical system PL and the substrate P.
- the immersion area LR is moved to the upper surface F2 of the measurement stage ST2 through the upper surface F1 of the substrate stage ST1.
- the immersion area LR of the liquid LQ formed between the first optical element LSI of the projection optical system PL and the substrate P is moved along with the movement of the substrate stage ST1 and the measurement stage ST2 in the Y direction. Move in the order of substrate P surface, substrate stage ST1 top surface Fl, measurement stage ST2 top surface F2.
- the liquid region LR is arranged so as to straddle and.
- the control device CONT uses the drive mechanism SD to move the substrate stage ST1 to a predetermined base. While moving to the board exchange position, the board P is exchanged, and at the same time, a predetermined measurement process using the measurement stage ST2 is executed as necessary.
- An example of this measurement is the baseline measurement of alignment ALG.
- the above-described mask alignment is performed by combining a pair of first reference marks on the reference mark plate FM provided on the measurement stage ST2 and the corresponding mask alignment marks on the mask M. Detection is performed simultaneously using systems RAa and RAb, and the positional relationship between the first reference mark and the corresponding mask alignment mark is detected.
- control device CONT detects the second reference mark on the reference mark plate FM by the alignment system ALG, thereby detecting the positional relationship between the detection reference position of the alignment system ALG and the second reference mark. Then, the control device CONT has a positional relationship between the first reference mark and the corresponding mask alignment mark, a positional relationship between the alignment reference position of the alignment ALG and the second reference mark, and a known first reference mark. Based on the positional relationship between the mark and the second reference mark, the distance between the projection center of the mask pattern by the projection optical system PL and the detection reference position of the alignment system ALG, that is, the baseline of the alignment system ALG is obtained. Figure 4B shows this situation.
- the control device CONT brings the measurement stage ST2 and the substrate stage ST1 into contact (or close proximity) and their relative positional relationship. While maintaining the above, move in the XY plane and perform alignment processing on the replaced substrate P.
- a plurality of shot areas are provided on the substrate P, and alignment marks are provided in association with each of the plurality of shot areas.
- the control device CONT detects the alignment mark on the substrate P after replacement by the alignment system ALG, and calculates the position coordinates of the plurality of shot areas provided on the substrate P with respect to the alignment reference position of the alignment system ALG. .
- the control device CONT maintains the relative positional relationship between the substrate stage ST1 and the measurement stage ST2 in the Y-axis direction, and moves both stages ST1 and ST2 in the + Y direction. Then, the substrate stage ST1 (substrate P) is moved below the projection optical system PL, and then the measurement stage ST2 is retracted to a predetermined position. Thereby, the immersion area LR is arranged on the upper surface F1 of the substrate stage ST1.
- Measurement stage ST2 top surface F2 to substrate stage In the middle of moving the liquid LQ immersion area LR to the upper surface F1 of the stage ST1, the immersion area LR is arranged so as to straddle the upper surface F1 of the substrate stage ST1 and the upper surface F2 of the measurement stage ST2.
- control device CONT performs a step-and-scan type liquid immersion exposure operation on the substrate P, and sequentially transfers the pattern of the mask M to each of a plurality of shot regions on the substrate P.
- the movement (position) of the substrate stage ST1 for exposure of each shot area on the substrate P was measured immediately before the position coordinates of the plurality of shot areas on the substrate P obtained as a result of the above-mentioned substrate alignment. Controlled based on baseline.
- the measurement operation is not limited to the above-described baseline measurement, and the measurement stage ST2 is used to perform illuminance measurement, illuminance unevenness measurement, aerial image measurement, etc., for example, in parallel with substrate replacement.
- the projection optical system PL may be calibrated, for example, and reflected in the subsequent exposure of the substrate P.
- the alignment process for the substrate P after replacement is performed in a state where the substrate stage ST1 and the measurement stage ST2 are in contact (or close to each other).
- the immersion stage LR may be moved by bringing the substrate stage ST1 and the measurement stage ST2 into contact (or close proximity).
- the liquid LQ is completely recovered, supplied again, and again! /.
- the liquid LQ immersion area LR without going through the above steps is used for the upper surface F1 of the substrate stage ST1 and the measurement stage ST2.
- the time from the end of the exposure operation at the substrate stage ST1 to the start of the measurement operation at the measurement stage ST2 and the measurement end force at the measurement stage ST2 Exposure at the substrate stage ST1 can be shortened and the throughput can be improved.
- the liquid LQ is always present on the image plane side of the projection optical system PL, it is possible to effectively prevent the adhesion mark (so-called watermark) of the liquid LQ from being generated.
- the liquid immersion area LR of the liquid LQ is moved from the upper surface F1 of the substrate stage ST1 to the upper surface F2 of the measurement stage ST2, or from the upper surface F2 of the measurement stage ST2 to the upper surface F1 of the substrate stage ST1.
- the immersion area LR force is placed so as to straddle the upper surface F1 of the substrate stage ST1 and the upper surface F2 of the measurement stage ST2.
- FIG. 5 is a side view showing a state in which the immersion region LR straddles the upper surface F1 of the substrate stage ST1 and the upper surface F2 of the measurement stage ST2. In this state, the liquid LQ in the liquid immersion region LR may leak from between the substrate stage ST1 and the measurement stage ST2.
- the detection device 60 detects the leaked liquid LQ in a non-contact manner.
- each of the substrate stage ST1 and the measurement stage ST2 has the overhang portions HI and H2, even when the upper surface F1 of the substrate stage ST1 and the upper surface F2 of the measurement stage ST2 are close to or in contact with each other, A space H is formed below the gap G where the upper surface F1 and the upper surface F2 are close (or in contact). Therefore, after the gap G force leaked liquid LQ passes through the space H, it falls onto the base member BP. Further, even when the upper surface F1 of the substrate stage ST1 and the upper surface F2 of the measurement stage ST2 are close to or in contact with each other, the optical path space for the detection light La and Lb is secured by the space H.
- the detection lights La and Lb emitted from the light projecting units 61 and 63 are irradiated substantially parallel to the XY plane.
- the detection light Lb emitted from the light projecting unit 63 is irradiated almost parallel to the upper surface BT of the base member BP in the vicinity of the base member BP.
- the detection device 60 detects whether or not the liquid LQ is present in the space H based on the light reception result of the light receiving unit 62. Specifically, the detection device 60 can detect the liquid LQ that leaks and drops the gap G force based on the light reception result of the light receiving unit 62 and passes through the space H. Further, the detection device 60 can detect whether or not the liquid LQ is present on the upper surface BT of the base member BP based on the light reception result of the light receiving unit 64.
- the light projecting unit 61 and the light receiving unit 62 are opposed to each other, and the detection light La emitted from the light projecting unit 61 reaches the light receiving unit 62, and the light receiving unit 62 has a predetermined light amount (light intensity). It is designed to receive light.
- the detection light La is refracted, scattered, or absorbed by the liquid LQ. . Therefore, when the liquid LQ is present on the optical path of the detection light La, the amount of light (light intensity) received by the light receiving unit 62 decreases, or the detection light La does not reach the light receiving unit 62.
- the detection device 60 detects based on the light reception result (light reception amount) of the light receiving unit 62. It is possible to detect whether or not there is a liquid LQ in the optical path of the light La. Then, by detecting whether or not the liquid La is present on the optical path of the detection light La, the detection device 60 can detect whether or not the liquid LQ has leaked from the gap G.
- the light projecting unit 63 and the light receiving unit 64 are opposed to each other, and the detection light Lb emitted from the light projecting unit 63 reaches the light receiving unit 64 and has a predetermined light amount (light) (Intensity).
- the detection light La is caused by the liquid LQ. Refraction or scattering or absorption. Therefore, the detection device 60 can detect whether or not the liquid Lb is present on the optical path of the detection light Lb based on the light reception result (light reception amount) of the light receiving unit 64. It is possible to detect whether liquid LQ is present on the top BT.
- the detection lights La and Lb are irradiated so as to be aligned in the X-axis direction. Therefore, the detection device 60 can detect leakage of the liquid LQ in a wide area on the space H or the base member BP.
- the control device CONT determines that the liquid LQ has leaked based on the detection result of the detection device 60, for example, the control device CONT reduces the amount of liquid supplied per unit time by the liquid supply mechanism 10, or the liquid supply mechanism 10 Stop supply of liquid LQ.
- the control device CONT increases the liquid recovery amount per unit time by the liquid recovery mechanism 20 based on the detection result of the detection device 60.
- the control device CONT stops the exposure operation on the substrate P and the movement of the stages ST1 and ST2 based on the detection result of the detection device 60. In this way, when the leakage of the liquid LQ is detected, the control device CONT takes appropriate measures, so that the liquid LQ is installed, for example, the exposure apparatus EX! It is possible to prevent enlargement.
- the control device CONT may stop the intake operation from the intake ports of the gas bearings 41 and 42.
- Liquid LQ can be detected using the detection light Lb, and by taking appropriate measures according to the detection result, the liquid LQ force that has flowed out on the base member BP flows into the air inlets of the gas bearings 41 and 42. Can be prevented in advance.
- liquid LQ enters between the lower surface (bearing surface) of the gas bearings 41 and 42 and the upper surface BT of the base member BP, the position of the stages ST1 and ST2 in the Z-axis direction changes due to the liquid LQ.
- Possible actions can be taken based on the detection results of the force detector 60. Further, when it is determined that the liquid LQ has leaked based on the detection result of the detection device 60, the control device CONT can also drive a warning device (not shown) to issue a warning. As a result, for example, the operator can grasp that the liquid LQ has leaked, and therefore can take appropriate measures.
- An alarm device can issue an alarm using a warning light, warning sound, or display.
- the detection device 60 is configured to detect the liquid LQ optically in a non-contact manner, for example, wiring and various devices are arranged near the base member BP and the drive mechanism SD. There is no need. Therefore, the influence on the movement of stages ST1 and ST2 can be reduced.
- FIG. 6 is a diagram showing a second embodiment.
- the detection device 60 ′ shown in FIG. 6 has both functions of a light projecting unit that emits the detection light La ′ and a light receiving unit that receives the light.
- the detection device 60 is provided in the overhang part H2 of the measurement stage ST2.
- a reflecting member 66 having a reflecting surface 65 is provided at a position facing the detection device 60 ′ in the overhang portion HI of the substrate stage ST1.
- the detection device 60 ′ irradiates the reflection surface 65 with the detection light La, receives the reflection light from the reflection surface 65, and detects whether the liquid LQ leaks from the gap G based on the light reception result. To do.
- the liquid LQ is not present on the optical path of the detection light La ′
- the reflected light of the detection light La ′ emitted from the detection device 60 ′ is received by the detection device 60 ′ with a predetermined light intensity.
- the detection light La is scattered or absorbed by the liquid LQ, so that the reflected light has a light intensity lower than the predetermined light intensity. Received by '.
- the detection device 60 ′ is arranged on the optical path of the detection light La ′ based on the reception result of the reflected light. It is possible to detect whether or not the liquid LQ has a force, and thus whether or not the liquid LQ has leaked. Since the reflection surface 65 is provided, the difference in the light intensity received by the detection device 60 ′ increases with and without the liquid LQ on the optical path of the detection light La ′. Whether or not the liquid LQ is present on the optical path of the detection light La ′ can be detected with high accuracy.
- the optical path of the detection light La ′ emitted from the detection light 60 ′ exists in the gap G between the upper surface F1 and the upper surface F2.
- the detection device 60 ' having the functions of the light projecting unit and the light receiving unit is provided on the first side surface T1 (second side surface T2) described with reference to FIG. It may be provided on the side surface T2 (first side surface T1).
- the detection device 60 ′ may be provided in the gas bearing 41 (42) described with reference to FIG. 5, and the reflection member 66 may be provided in the gas bearing 42 (41).
- the light projecting part 61 described with reference to FIG. 5 may be provided in the overhang part HI (or H2), and the light receiving part 62 may be provided in the overhang part H2 (or HI)!
- FIG. 7 is a view showing an exposure apparatus EX ′ according to the third embodiment.
- the exposure apparatus EX shown in FIG. 7 holds a substrate P as disclosed in, for example, Japanese Patent Laid-Open Nos. 10-163099, 10-214783, and 2000-505958.
- This is a so-called twin stage type exposure apparatus having two movable substrate stages ST1 'and ST2'.
- the immersion area LR can be moved between the upper surface F1 ′ of the first substrate stage ST1 ′ and the upper surface F2 ′ of the second substrate stage ST2 ′.
- liquid is transferred from the upper surface of one stage to the upper surface of the other stage of the first substrate stage ST1 and the second substrate stage ST2 ′.
- the liquid LQ leaked from between the first substrate stage ST1 and the second substrate stage ST2 ′ can be detected.
- the liquid LQ in the present embodiment is pure water.
- Pure water has the advantage that it can be easily obtained in large quantities at semiconductor manufacturing factories and the like, and has no adverse effect on the photoresist or optical elements (lenses) on the substrate P.
- pure water has no adverse effects on the environment and the content of impurities is extremely low.
- cleans the surface of the optical element provided in the front end surface of this can also be anticipated. If the purity of pure water supplied by the factory is low, the exposure apparatus may have an ultrapure water production device.
- the refractive index n of pure water (water) for exposure light EL with a wavelength of about 193 nm is said to be approximately 1. 44, and ArF excimer laser light (wavelength 193 nm) is used as the light source of exposure light EL.
- ArF excimer laser light wavelength 193 nm
- the wavelength is shortened to about 134 nm to obtain a high resolution.
- the projection optical system PL can be used if it is sufficient to ensure the same depth of focus as in the air.
- the numerical aperture can be increased further, and the resolution is improved in this respect as well.
- the liquid LQ of the present embodiment may be a liquid other than water, which is water.
- the light source of the exposure light EL is an F laser
- the F laser light does not transmit water. So
- liquid LQ for example, perfluorinated polyether (PFPE) and F laser light can be transmitted.
- PFPE perfluorinated polyether
- F laser light can be transmitted.
- the part that comes into contact with the liquid LQ may be a fluorine-based fluid such as fluorine-based oil.
- the part that comes into contact with the liquid LQ for example, has a small polarity including fluorine!
- the film is made lyophilic by forming a thin film with a molecular structure.
- the liquid LQ is stable to the projection optical system PL that is transmissive to the exposure light EL and has a refractive index as high as possible, and to the photoresist applied to the surface of the substrate P (for example, Cedar). Oil) can also be used.
- the surface treatment is performed according to the polarity of the liquid LQ used.
- the exposure apparatus to which the above-described immersion method is applied is configured to expose the substrate P by filling the light path space on the emission side of the optical element LSI of the projection optical system PL with liquid (pure water).
- liquid pure water
- the optical path space on the incident side of the optical element LS 1 of the projection optical system PL may be filled with liquid (pure water).
- the substrate P in each of the above embodiments is not limited to a semiconductor wafer for manufacturing a semiconductor device, but also a glass substrate for a display device, a ceramic wafer for a thin film magnetic head, or a mask used in an exposure apparatus.
- Reticle masters synthetic quartz, silicon wafers are applied.
- a step-and-scan type scanning exposure apparatus that performs mask exposure by moving the mask M and the substrate P in synchronization with each other.
- a step-and-repeat projection exposure apparatus steno
- the mask M and the substrate P are stationary and the pattern of the mask M is collectively exposed and the substrate P is sequentially moved stepwise.
- a reduced image of the first pattern is projected with the first pattern and the substrate P substantially stationary. It can also be applied to an exposure apparatus that uses a projection optical system) to perform batch exposure on the substrate P. In this case, after that, with the second pattern and the substrate P almost stationary, a reduced image of the second pattern is collectively exposed on the substrate P by partially overlapping the first pattern using the projection optical system. It can also be applied to a stitch type batch exposure apparatus. In addition, the stitch type exposure apparatus can also be applied to a step 'and' stitch type exposure apparatus in which at least two patterns are partially overlapped and transferred on the substrate P, and the substrate P is sequentially moved.
- a light transmissive mask in which a predetermined light shielding pattern (or phase pattern 'dimming pattern) is formed on a light transmissive substrate is used.
- a predetermined light shielding pattern or phase pattern 'dimming pattern
- an electronic mask that forms a transmission pattern, a reflection pattern, or a light emission pattern based on electronic data of a pattern to be exposed can be used. Good.
- an exposure apparatus (lithography system) that forms a line 'and' space pattern on a wafer W by forming interference fringes on the wafer W.
- the invention can be applied.
- an exposure apparatus that locally fills the liquid between the projection optical system PL and the substrate P is employed.
- the entire surface of the substrate to be exposed is used.
- the present invention is also applicable to an immersion exposure apparatus that is covered with a liquid.
- the structure and exposure operation of an immersion exposure apparatus in which the entire surface of a substrate to be exposed is covered with a liquid are disclosed in, for example, JP-A-6-124873, JP-A-10-303114, US Pat. No. 5,825,043. It is described in. .
- the type of exposure apparatus EX is not limited to an exposure apparatus for manufacturing a semiconductor element that exposes a semiconductor element pattern onto a substrate P, but an exposure apparatus for manufacturing a liquid crystal display element or a display, a thin film magnetic head, An image sensor (CCD) or a reticle or mask
- the present invention can be widely applied to an exposure apparatus for manufacturing.
- the exposure apparatus EX assembles various subsystems including the respective constituent elements recited in the claims of the present application so as to maintain predetermined mechanical accuracy, electrical accuracy, and optical accuracy. It is manufactured by. In order to ensure these various accuracies, before and after this assembly, various optical systems are adjusted to achieve optical accuracy, various mechanical systems are adjusted to achieve mechanical accuracy, For electrical systems, adjustments are made to achieve electrical accuracy.
- Various subsystem powers The assembly process to the exposure equipment includes mechanical connections, electrical circuit wiring connections, and pneumatic circuit piping connections between the various subsystems. Needless to say, there is an assembly process for each subsystem prior to the assembly process to the exposure apparatus. When the assembly process of the various subsystems to the exposure apparatus is completed, comprehensive adjustments are performed to ensure various accuracies as the entire exposure apparatus. It is desirable to manufacture the exposure apparatus in a clean room where the temperature and cleanliness are controlled.
- a microdevice such as a semiconductor device includes a step 201 for designing a function / performance of the microdevice, a step 202 for producing a mask (reticle) based on the design step, Step 203 for manufacturing a substrate as a base material, substrate processing step 204 for exposing a mask pattern onto the substrate by the exposure apparatus EX of the above-described embodiment, device assembly step (including dicing process, bonding process, and packaging process) 205 It is manufactured through inspection step 206 and the like.
Abstract
Description
Claims
Priority Applications (6)
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KR1020127007256A KR101331631B1 (ko) | 2004-10-15 | 2005-10-12 | 노광 장치 및 디바이스 제조 방법 |
KR1020077002533A KR101364347B1 (ko) | 2004-10-15 | 2005-10-12 | 노광 장치 및 디바이스 제조 방법 |
US11/665,273 US7456929B2 (en) | 2004-10-15 | 2005-10-12 | Exposure apparatus and device manufacturing method |
JP2006540953A JP4488006B2 (ja) | 2004-10-15 | 2005-10-12 | 露光装置及びデバイス製造方法 |
EP05793142.0A EP1806772B1 (en) | 2004-10-15 | 2005-10-12 | Exposure apparatus and device manufacturing method |
US12/289,321 US8456609B2 (en) | 2004-10-15 | 2008-10-24 | Exposure apparatus and device manufacturing method |
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US11/665,273 A-371-Of-International US7456929B2 (en) | 2004-10-15 | 2005-10-12 | Exposure apparatus and device manufacturing method |
US12/289,321 Division US8456609B2 (en) | 2004-10-15 | 2008-10-24 | Exposure apparatus and device manufacturing method |
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US (2) | US7456929B2 (ja) |
EP (4) | EP1806772B1 (ja) |
JP (1) | JP4488006B2 (ja) |
KR (2) | KR101331631B1 (ja) |
HK (2) | HK1224082A1 (ja) |
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- 2005-10-12 EP EP17184684.3A patent/EP3306647A1/en not_active Withdrawn
- 2005-10-12 KR KR1020127007256A patent/KR101331631B1/ko active IP Right Grant
- 2005-10-12 SG SG200906802-4A patent/SG156635A1/en unknown
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- 2005-10-12 WO PCT/JP2005/018803 patent/WO2006041100A1/ja active Application Filing
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JP2009065223A (ja) * | 2004-10-18 | 2009-03-26 | Asml Netherlands Bv | リソグラフィ装置及びデバイス製造方法 |
JP2010219545A (ja) * | 2004-10-18 | 2010-09-30 | Asml Netherlands Bv | リソグラフィ装置及びデバイス製造方法 |
EP2472332B1 (en) * | 2004-11-01 | 2014-03-12 | Nikon Corporation | Exposure apparatus and device fabricating method |
JP2006135165A (ja) * | 2004-11-08 | 2006-05-25 | Nikon Corp | 露光装置及びデバイス製造方法 |
EP3312676A1 (en) * | 2006-08-31 | 2018-04-25 | Nikon Corporation | Exposure apparatus, exposure method, and device manufacturing method |
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JP2010505240A (ja) * | 2006-09-29 | 2010-02-18 | 株式会社ニコン | 露光装置及び露光方法、並びにデバイス製造方法 |
US8289500B2 (en) | 2006-09-29 | 2012-10-16 | Nikon Corporation | Exposure apparatus, exposure method, and device manufacturing method |
KR101413891B1 (ko) * | 2006-09-29 | 2014-06-30 | 가부시키가이샤 니콘 | 노광 장치 및 노광 방법, 그리고 디바이스 제조 방법 |
KR101419196B1 (ko) | 2006-09-29 | 2014-07-15 | 가부시키가이샤 니콘 | 노광 장치 및 노광 방법, 그리고 디바이스 제조 방법 |
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JP2008124194A (ja) * | 2006-11-10 | 2008-05-29 | Canon Inc | 液浸露光方法および液浸露光装置 |
Also Published As
Publication number | Publication date |
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EP2426700A2 (en) | 2012-03-07 |
KR101364347B1 (ko) | 2014-02-18 |
HK1248027A1 (zh) | 2018-10-05 |
EP3046135B1 (en) | 2017-09-20 |
EP3306647A1 (en) | 2018-04-11 |
HK1224082A1 (zh) | 2017-08-11 |
EP1806772A4 (en) | 2009-09-16 |
EP2426700A3 (en) | 2016-08-24 |
EP2426700B1 (en) | 2018-01-10 |
KR20120068877A (ko) | 2012-06-27 |
EP1806772B1 (en) | 2014-08-06 |
US20090066923A1 (en) | 2009-03-12 |
US8456609B2 (en) | 2013-06-04 |
US7456929B2 (en) | 2008-11-25 |
JPWO2006041100A1 (ja) | 2008-05-15 |
EP1806772A1 (en) | 2007-07-11 |
JP4488006B2 (ja) | 2010-06-23 |
SG156635A1 (en) | 2009-11-26 |
US20080111978A1 (en) | 2008-05-15 |
EP3046135A2 (en) | 2016-07-20 |
KR20070068339A (ko) | 2007-06-29 |
EP3046135A3 (en) | 2016-08-24 |
KR101331631B1 (ko) | 2013-11-20 |
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