WO2001002289A9 - Movement sensor in a micro electro-mechanical device - Google Patents
Movement sensor in a micro electro-mechanical deviceInfo
- Publication number
- WO2001002289A9 WO2001002289A9 PCT/AU2000/000582 AU0000582W WO0102289A9 WO 2001002289 A9 WO2001002289 A9 WO 2001002289A9 AU 0000582 W AU0000582 W AU 0000582W WO 0102289 A9 WO0102289 A9 WO 0102289A9
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- actuating arm
- pct
- contact element
- support structure
- arm
- Prior art date
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14427—Structure of ink jet print heads with thermal bend detached actuators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/04508—Control methods or devices therefor, e.g. driver circuits, control circuits aiming at correcting other parameters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/0451—Control methods or devices therefor, e.g. driver circuits, control circuits for detecting failure, e.g. clogging, malfunctioning actuator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/04541—Specific driving circuit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/04585—Control methods or devices therefor, e.g. driver circuits, control circuits controlling heads based on thermal bent actuators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/04588—Control methods or devices therefor, e.g. driver circuits, control circuits using a specific waveform
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/0459—Height of the driving signal being adjusted
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/04591—Width of the driving signal being adjusted
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/04596—Non-ejecting pulses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/07—Ink jet characterised by jet control
- B41J2/125—Sensors, e.g. deflection sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
- B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2002/14346—Ejection by pressure produced by thermal deformation of ink chamber, e.g. buckling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2002/14354—Sensor in each pressure chamber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14427—Structure of ink jet print heads with thermal bend detached actuators
- B41J2002/14435—Moving nozzle made of thermal bend detached actuator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8158—With indicator, register, recorder, alarm or inspection means
- Y10T137/8225—Position or extent of motion indicator
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8158—With indicator, register, recorder, alarm or inspection means
- Y10T137/8225—Position or extent of motion indicator
- Y10T137/8242—Electrical
Definitions
- This invention relates to an integrated movement sensor within a micro electro-mechanical (MEM) device.
- MEMS micro electro-mechanical systems
- CMOS complementary metal-oxide semiconductor
- a high speed pagewidth inkjet printer has recently been developed by the present Applicant. This typically employs in the order of 51200 inkjet nozzles to print on A4 size paper to provide photographic quality image printing at 1600 dpi. In order to achieve this nozzle density, the nozzles are fabricated by integrating MEMS-CMOS technology and in this context reference may be made to International Patent Application No. PCT/AU00/00338 by the present Applicant entitled "Thermal Actuator" (Our Docket No. MJ08).
- a difficulty that flows from the fabrication of such a printer is that there is no convenient way of ensuring that all nozzles that extend across the printhead or, indeed, that are located on a given chip will perform identically, and this problem is exacerbated when chips that are obtained from different wafers may need to be assembled into a given printhead. Also, having fabricated a complete printhead from a plurality of chips, it is
- the present invention may be defined broadly as providing a micro electro-mechanical device comprising: a support structure, an actuating arm having a first end coupled to the support structure and a second end that is movable with respect to the support structure, the acttt ⁇ ting arm being formed in part from an electrically resistive material and being arranged to conduct heat inducing electrical current from a current source within, the support structure to effect movement of the actuating arm, and a movement sensor incorporated in the device.
- the movement sensor comprises - a moving contact element formed integrally with the actr ⁇ ating arm adjacent the second end of the actuating arm, a fixed contact element formed integrally with the support structure and positioned to be contacted by the moving contact element when the actuating arm moves to a predetermined extent under the influence of the heat inducing electrical current, and electrical circuit elements formed within the support structure for detecting contact between the fixed contact element and the moving contact element.
- the MEM device preferably is in the form of a liquid ejector and most preferably is in the form of an ink ejection nozzle that is operable to eject an ink droplet upon actuation of the actoating arm.
- the second end of the actuating arm preferably is coupled to an integrally formed paddle which is employed to displace ink from a chamber into which the actuating arm extends.
- the actuating arm most preferably is formed from two similarly shaped arm portions which are interconnected in interlapping relationship. In this embodiment of the invention, a first of the arm portions is connected to a current supply and is arranged in use to be heated by current flow.
- the second arm portion functions to restrain linear expansion of the actuating arm as a complete unit and heat induced elongation of the first arm portion causes bending to occur along the length of the actuating arm.
- the actuating arm is effectively caused to pivot with respect to the substrate with heating and cooling of the first portion of the actuating arm.
- Figure 1 shows a highly magnified cross-sectional elevation view of a portion of the inkjet nozzle
- Figure 2 shows a plan view of the inkjet nozzle of Figure 1
- Figure 3 shows a perspective view of an outer portion of an actuating arm and an ink ejecting paddle or of the inkjet nozzle, the actuating arm and paddle being illustrated independently of other elements of the nozzle
- Figure 4 shows an arrangement similar to that of Figure 3 but in respect of an inner portion of the actuating arm
- Figure 5 shows an arrangement similar to that of Figures 3 and 4 but in respect of the complete actuating arm incorporating the outer and inner portions shown in Figures 3 and 4
- Figure 6 shows a detailed portion of a movement sensor arrangement that is shown encircled in Figure 5
- Figure 7 shows a sectional elevation view of the nozzle of Figure 1 but prior to charging with ink
- Figure 8 shows a sectional elevation view of the nozzle of Figure 7 but with the actuating arm and paddle actuated to
- a single inkjet nozzle device is shown as a portion of a chip that is fabricated by integrating MEMS and CMOS technologies.
- the complete nozzle device includes a support structure having a silicon substrate 20, a metal oxide semiconductor layer 21, a passivation layer 22, and a non-corrosive dielectric coating/chamber-defining layer 23.
- the nozzle device incorporates an ink chamber 24 which is connected to a source (not shown) of ink and, located above the chamber, a nozzle chamber 25.
- a nozzle opening 26 is provided in the chamber-defining layer 23 to permit displacement of ink droplets toward paper or other medium (not shown) onto which ink is to be deposited.
- a paddle 27 is located between the two chambers 24 and 25 and, when in its quiescent position, as indicated in Figures 1 and 7, the paddle 27 effectively divides the two chambers 24 and 25.
- the paddle 27 is coupled to an actuating arm 28 by a paddle extension 29 and a bridging portion 30 of the dielectric coating 23.
- the actuating arm 28 is formed (i.e. deposited during fabrication of the device) to be pivotable with respect to the support structure or substrate 20.
- the actuating arm has a first end that is coupled to the support structure and a second end 38 that is movable outwardly with respect to the support structure.
- the actuating arm 28 comprises outer and inner arm portions 31 and 32.
- the outer arm portion 31 is illustrated in ⁇ detail and in isolation from other components of the nozzle device in the perspective view shown in Figure 3.
- the inner arm portion 32 is illustrated in a similar way in Figure 4.
- the complete actuating arm 28 is illustrated in perspective in Figure 5, as well as in Figures 1, 7, 8, 9 and 10.
- the inner portion 32 of the actuating arm 28 is formed from an titanium-aluminum-nitride ((Ti, A1)N reactively sputtered) deposit during formation of the nozzle device and it is connected electrically to a current source 33, as illustrated schematically in Figure 11, within the CMOS structure.
- the electrical connection is made to end terminals 34 and 35, and application of an excitation (drive) voltage to the terrr ⁇ nals results in current flow through the inner portion only of the actuating arm 28.
- the current flow causes resistance heating within the inner portion 32 of the actuating arm and consequential elongation of that portion of the arm.
- the outer arm portion 31 of the actuating arm 28 is mechanically coupled to but electrically isolated from the inner arm portion 32 by posts 36.
- the moving contact element 37 is positioned adjacent the second end 38 of the actuating arm and, thus, with a voltage V applied to the end terminals 34 and 35, the moving contact element will be at a potential of approximately V/2.
- the movement sensor also comprises a fixed contact element 39 which is formed integrally with the CMOS layer 22 and which is positioned to be contacted by the moving contact element 37 when the actuating arm 28 pivots upwardly to a predetermined extent.
- the fixed contact element is connected electrically to amplifier elements 40 and to a microprocessor arrangement 41, both of which are shown in Figure 11 and the component elements of which are embodied within the CMOS layer 22 of the device.
- Figure 10 shows an excitation-time diagram that is applicable to effecting actuation of the actuator arm 28 and the paddle 27 from a quiescent to a lower-than-normal ink ejecting position.
- the displacement of the paddle 27 resulting from the excitation of Figure 12 is indicated by the lower graph 42 in Figure 14, and it can be seen that the maximum extent of displacement is less than the optimum level that is shown by the displacement line 43.
- Figure 13 shows an expanded excitation-time diagram that is applicable to effecting actuation of the actuator arm 28 and the paddle 27 to an excessive extent, such as is indicated in Figures 8 and 9.
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60025227T DE60025227D1 (en) | 1999-06-30 | 2000-05-24 | MOTION SENSOR IN A MICROELECTROMECHANICAL COMPONENT |
AU47317/00A AU766416B2 (en) | 1999-06-30 | 2000-05-24 | Movement sensor in a micro electro-mechanical device |
EP20000929094 EP1214271B1 (en) | 1999-06-30 | 2000-05-24 | Movement sensor in a micro electro-mechanical device |
AT00929094T ATE314306T1 (en) | 1999-06-30 | 2000-05-24 | MOTION SENSOR IN A MICROELECTROMECHANICAL COMPONENT |
CA 2414741 CA2414741C (en) | 1999-06-30 | 2000-05-24 | Movement sensor in a micro electro-mechanical device |
HK02109044.5A HK1047572A1 (en) | 1999-06-30 | 2002-12-12 | Movement sensor in a micro electro-mechanical device |
AU2004200135A AU2004200135B2 (en) | 1999-06-30 | 2004-01-15 | Movement sensor in a micro electro-mechanical device |
IL164957A IL164957A (en) | 1999-06-30 | 2004-11-01 | Micro electro-mechanical device having an integrated movement sensor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPQ1309A AUPQ130999A0 (en) | 1999-06-30 | 1999-06-30 | A method and apparatus (IJ47V11) |
AUPQ1309 | 1999-06-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001002289A1 WO2001002289A1 (en) | 2001-01-11 |
WO2001002289A9 true WO2001002289A9 (en) | 2005-03-24 |
Family
ID=3815498
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2000/000584 WO2001002178A1 (en) | 1999-06-30 | 2000-05-24 | Calibrating a micro electro-mechanical device |
PCT/AU2000/000586 WO2001002180A1 (en) | 1999-06-30 | 2000-05-24 | Fault detection in a micro electro-mechanical device |
PCT/AU2000/000582 WO2001002289A1 (en) | 1999-06-30 | 2000-05-24 | Movement sensor in a micro electro-mechanical device |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2000/000584 WO2001002178A1 (en) | 1999-06-30 | 2000-05-24 | Calibrating a micro electro-mechanical device |
PCT/AU2000/000586 WO2001002180A1 (en) | 1999-06-30 | 2000-05-24 | Fault detection in a micro electro-mechanical device |
Country Status (14)
Country | Link |
---|---|
US (41) | US6322194B1 (en) |
EP (3) | EP1206352B1 (en) |
JP (1) | JP4388251B2 (en) |
CN (4) | CN1138634C (en) |
AT (3) | ATE400436T1 (en) |
AU (1) | AUPQ130999A0 (en) |
BR (1) | BR0011991A (en) |
CA (4) | CA2414734C (en) |
DE (3) | DE60041193D1 (en) |
HK (1) | HK1047572A1 (en) |
IL (2) | IL147357A0 (en) |
MX (1) | MXPA02000179A (en) |
WO (3) | WO2001002178A1 (en) |
ZA (1) | ZA200200767B (en) |
Families Citing this family (79)
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AUPQ130999A0 (en) * | 1999-06-30 | 1999-07-22 | Silverbrook Research Pty Ltd | A method and apparatus (IJ47V11) |
KR100752253B1 (en) * | 1999-09-17 | 2007-08-29 | 실버브룩 리서치 피티와이 리미티드 | Method and system for instruction of a computer |
US7804767B1 (en) * | 1999-10-25 | 2010-09-28 | Tellabs Operations, Inc. | Protection/restoration of MPLS networks |
DE60039634D1 (en) * | 2000-05-24 | 2008-09-04 | Silverbrook Res Pty Ltd | PRESSURE CONTROL UNIT / CONTROL WITH COLOR MASK |
EP1301346B1 (en) * | 2000-06-30 | 2007-08-15 | Silverbrook Research Pty. Limited | Buckle resistant thermal bend actuators |
US6669909B2 (en) * | 2001-03-26 | 2003-12-30 | Allegro Technologies Limited | Liquid droplet dispensing |
US6460972B1 (en) * | 2001-11-06 | 2002-10-08 | Eastman Kodak Company | Thermal actuator drop-on-demand apparatus and method for high frequency |
US7052117B2 (en) | 2002-07-03 | 2006-05-30 | Dimatix, Inc. | Printhead having a thin pre-fired piezoelectric layer |
US7419258B2 (en) * | 2002-09-30 | 2008-09-02 | Brother Kogyo Kabushiki Kaisha | Electronic device having detachable controller |
CN101581601B (en) * | 2003-08-20 | 2011-05-25 | 台达电子工业股份有限公司 | Detection method, micro-electromechanical component and micro-detection structure of micro-mechanical structure |
US8491076B2 (en) | 2004-03-15 | 2013-07-23 | Fujifilm Dimatix, Inc. | Fluid droplet ejection devices and methods |
US7281778B2 (en) | 2004-03-15 | 2007-10-16 | Fujifilm Dimatix, Inc. | High frequency droplet ejection device and method |
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