KR100836193B1 - 압전형 마이크로폰 - Google Patents
압전형 마이크로폰 Download PDFInfo
- Publication number
- KR100836193B1 KR100836193B1 KR1020060067974A KR20060067974A KR100836193B1 KR 100836193 B1 KR100836193 B1 KR 100836193B1 KR 1020060067974 A KR1020060067974 A KR 1020060067974A KR 20060067974 A KR20060067974 A KR 20060067974A KR 100836193 B1 KR100836193 B1 KR 100836193B1
- Authority
- KR
- South Korea
- Prior art keywords
- piezoelectric
- microphone
- present
- protective film
- piezoelectric microphone
- Prior art date
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 20
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 11
- 229910052710 silicon Inorganic materials 0.000 description 11
- 239000010703 silicon Substances 0.000 description 11
- 239000000758 substrate Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 6
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 4
- 238000005530 etching Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
- H04R17/02—Microphones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
- H04R31/006—Interconnection of transducer parts
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
Description
Claims (5)
- 압전층과 상부전극 및 하부전극을 단위 구조로 하며, 이러한 단위 구조가 보호막의 상면에 반원 형태 혹은 N등분된 원 형태 혹은 M개의 동심원 형태로 복수 개로 배열되어 있는 것을 특징으로 하는 압전형 마이크로폰.
- 제 1 항에 있어서, 상기 복수 개의 단위 구조가 n개이면, 상기 n개의 단위 구조가 각각 음압에 대응하는 압전기 신호를 발생할 때 상기 압전형 마이크로폰이 발생하는 압전기 신호의 총 전압의 크기는 n×(각 단위 구조에서 발생하는 압전기 신호의 전압)인 것을 특징으로 하는 압전형 마이크로폰.
- 삭제
- 삭제
- 삭제
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060067974A KR100836193B1 (ko) | 2006-07-20 | 2006-07-20 | 압전형 마이크로폰 |
US11/826,332 US8121317B2 (en) | 2006-07-20 | 2007-07-13 | Piezoelectric microphone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060067974A KR100836193B1 (ko) | 2006-07-20 | 2006-07-20 | 압전형 마이크로폰 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20080008560A KR20080008560A (ko) | 2008-01-24 |
KR100836193B1 true KR100836193B1 (ko) | 2008-06-09 |
Family
ID=38971461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020060067974A KR100836193B1 (ko) | 2006-07-20 | 2006-07-20 | 압전형 마이크로폰 |
Country Status (2)
Country | Link |
---|---|
US (1) | US8121317B2 (ko) |
KR (1) | KR100836193B1 (ko) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5677258B2 (ja) * | 2011-09-27 | 2015-02-25 | 株式会社東芝 | 歪検知装置及びその製造方法 |
US20170300968A1 (en) * | 2016-04-14 | 2017-10-19 | Nb Portals, Llc | Method and system for disseminating information over a communication network |
TWI708511B (zh) | 2016-07-21 | 2020-10-21 | 聯華電子股份有限公司 | 壓阻式麥克風的結構及其製作方法 |
KR101994583B1 (ko) | 2018-01-30 | 2019-06-28 | 김경원 | Mems 압전형 마이크로폰 |
US11968414B1 (en) | 2018-06-18 | 2024-04-23 | Sintec Media Ltd. | Systems and methods for forecasting program viewership |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000350296A (ja) | 1999-06-04 | 2000-12-15 | Hokuriku Electric Ind Co Ltd | マイクロフォン |
JP2001025095A (ja) | 1999-07-05 | 2001-01-26 | Hokuriku Electric Ind Co Ltd | 自励振型マイクロフォン |
KR20030075906A (ko) * | 2002-03-21 | 2003-09-26 | 삼성전자주식회사 | 마이크로 폰 및 스피커로 사용되는 멤스(mems) 소자및 그 제조 방법 |
KR20040026758A (ko) * | 2002-09-26 | 2004-04-01 | 삼성전자주식회사 | 플렉서블 mems 트랜스듀서 제조방법 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2105010A (en) * | 1933-02-25 | 1938-01-11 | Brush Dev Co | Piezoelectric device |
US2282319A (en) * | 1941-02-28 | 1942-05-12 | Brush Dev Co | Leakage reducing means |
US3987320A (en) * | 1974-01-02 | 1976-10-19 | The United States Of America As Represented By The Secretary Of The Army | Multiaxis piezoelectric sensor |
JPH1068742A (ja) | 1996-08-27 | 1998-03-10 | Akebono Brake Ind Co Ltd | 加速度スイッチおよび加速度スイッチの製造方法ならびに加速度スイッチを用いた加速度センサー |
JP3907616B2 (ja) * | 2003-10-03 | 2007-04-18 | 太陽誘電株式会社 | 電子機器 |
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2006
- 2006-07-20 KR KR1020060067974A patent/KR100836193B1/ko active IP Right Grant
-
2007
- 2007-07-13 US US11/826,332 patent/US8121317B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000350296A (ja) | 1999-06-04 | 2000-12-15 | Hokuriku Electric Ind Co Ltd | マイクロフォン |
JP2001025095A (ja) | 1999-07-05 | 2001-01-26 | Hokuriku Electric Ind Co Ltd | 自励振型マイクロフォン |
KR20030075906A (ko) * | 2002-03-21 | 2003-09-26 | 삼성전자주식회사 | 마이크로 폰 및 스피커로 사용되는 멤스(mems) 소자및 그 제조 방법 |
KR20040026758A (ko) * | 2002-09-26 | 2004-04-01 | 삼성전자주식회사 | 플렉서블 mems 트랜스듀서 제조방법 |
Also Published As
Publication number | Publication date |
---|---|
KR20080008560A (ko) | 2008-01-24 |
US20080019545A1 (en) | 2008-01-24 |
US8121317B2 (en) | 2012-02-21 |
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