CN100461976C - 微电容式麦克风系统及其制造方法 - Google Patents
微电容式麦克风系统及其制造方法 Download PDFInfo
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- CN100461976C CN100461976C CNB2003101129331A CN200310112933A CN100461976C CN 100461976 C CN100461976 C CN 100461976C CN B2003101129331 A CNB2003101129331 A CN B2003101129331A CN 200310112933 A CN200310112933 A CN 200310112933A CN 100461976 C CN100461976 C CN 100461976C
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Abstract
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2003101129331A CN100461976C (zh) | 2003-12-26 | 2003-12-26 | 微电容式麦克风系统及其制造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CNB2003101129331A CN100461976C (zh) | 2003-12-26 | 2003-12-26 | 微电容式麦克风系统及其制造方法 |
Publications (2)
Publication Number | Publication Date |
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CN1635820A CN1635820A (zh) | 2005-07-06 |
CN100461976C true CN100461976C (zh) | 2009-02-11 |
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Application Number | Title | Priority Date | Filing Date |
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CNB2003101129331A Expired - Lifetime CN100461976C (zh) | 2003-12-26 | 2003-12-26 | 微电容式麦克风系统及其制造方法 |
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CN (1) | CN100461976C (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102271300B (zh) * | 2010-06-04 | 2014-01-15 | 北京卓锐微技术有限公司 | 一种集成的麦克风偏置电压控制方法和偏置电压生成电路 |
US8755541B2 (en) * | 2012-09-11 | 2014-06-17 | Invensense, Inc. | Microphone with parasitic capacitance cancelation |
CN108793061B (zh) * | 2018-05-25 | 2020-11-27 | 岭南师范学院 | 一种全电极凸纹结构cmut器件的制备方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6295247B1 (en) * | 1998-10-02 | 2001-09-25 | The Board Of Trustees Of The Leland Stanford Junior University | Micromachined rayleigh, lamb, and bulk wave capacitive ultrasonic transducers |
CN1346231A (zh) * | 2000-09-21 | 2002-04-24 | 松下电器产业株式会社 | 驻极体电容传声器及其制造方法 |
US20020048220A1 (en) * | 1999-12-17 | 2002-04-25 | Khuri-Yakub Butrus T. | Wide frequency band micromachined capacitive microphone/hydrophone and method |
-
2003
- 2003-12-26 CN CNB2003101129331A patent/CN100461976C/zh not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6295247B1 (en) * | 1998-10-02 | 2001-09-25 | The Board Of Trustees Of The Leland Stanford Junior University | Micromachined rayleigh, lamb, and bulk wave capacitive ultrasonic transducers |
US20020048220A1 (en) * | 1999-12-17 | 2002-04-25 | Khuri-Yakub Butrus T. | Wide frequency band micromachined capacitive microphone/hydrophone and method |
CN1346231A (zh) * | 2000-09-21 | 2002-04-24 | 松下电器产业株式会社 | 驻极体电容传声器及其制造方法 |
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CN1635820A (zh) | 2005-07-06 |
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Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: WUXI NEOMEMS TECHNOLOGIES, INC. Free format text: FORMER OWNER: US GEN MICROELECTROMECHANICAL SYSTEM Effective date: 20120611 |
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C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; TO: 214064 WUXI, JIANGSU PROVINCE |
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TR01 | Transfer of patent right |
Effective date of registration: 20120611 Address after: YONGGU road Binhu District 214064 Jiangsu city of Wuxi province No. 1 Patentee after: Wuxi Xinao Micro Sensor Technology Co.,Ltd. Address before: American California Patentee before: US GEN MICROELECTROMECHANICAL |
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PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Micro-capacitor type microphone system and manufacturing method thereof Effective date of registration: 20160526 Granted publication date: 20090211 Pledgee: Wuxi Industrial Development Group Pledgor: Wuxi Xinao Micro Sensor Technology Co.,Ltd. Registration number: 2016320000007 |
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PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
CX01 | Expiry of patent term |
Granted publication date: 20090211 |
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CX01 | Expiry of patent term |