CN202135315U - 可防止粘膜的驻极体传声器 - Google Patents
可防止粘膜的驻极体传声器 Download PDFInfo
- Publication number
- CN202135315U CN202135315U CN201120177023U CN201120177023U CN202135315U CN 202135315 U CN202135315 U CN 202135315U CN 201120177023 U CN201120177023 U CN 201120177023U CN 201120177023 U CN201120177023 U CN 201120177023U CN 202135315 U CN202135315 U CN 202135315U
- Authority
- CN
- China
- Prior art keywords
- vibrating diaphragm
- pole plate
- electret microphone
- cavity
- insulating washer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
Description
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201120177023U CN202135315U (zh) | 2011-05-30 | 2011-05-30 | 可防止粘膜的驻极体传声器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201120177023U CN202135315U (zh) | 2011-05-30 | 2011-05-30 | 可防止粘膜的驻极体传声器 |
Publications (1)
Publication Number | Publication Date |
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CN202135315U true CN202135315U (zh) | 2012-02-01 |
Family
ID=45524068
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201120177023U Expired - Lifetime CN202135315U (zh) | 2011-05-30 | 2011-05-30 | 可防止粘膜的驻极体传声器 |
Country Status (1)
Country | Link |
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CN (1) | CN202135315U (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111757226A (zh) * | 2020-06-19 | 2020-10-09 | 歌尔微电子有限公司 | Mems芯片及其制作方法、mems麦克风 |
-
2011
- 2011-05-30 CN CN201120177023U patent/CN202135315U/zh not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111757226A (zh) * | 2020-06-19 | 2020-10-09 | 歌尔微电子有限公司 | Mems芯片及其制作方法、mems麦克风 |
CN111757226B (zh) * | 2020-06-19 | 2022-01-14 | 歌尔微电子有限公司 | Mems芯片及其制作方法、mems麦克风 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Electret microphone capable of preventing film bonding Effective date of registration: 20180118 Granted publication date: 20120201 Pledgee: Kingston Technology Company, Inc. Pledgor: Dongguan Transound Electronics Co., Ltd. Registration number: 2018990000059 |
|
PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20201224 Granted publication date: 20120201 Pledgee: Kingston Technology Corp. Pledgor: TRANSOUND ELECTRONICS Co.,Ltd. Registration number: 2018990000059 |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20120201 |