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BR8307454A - Transdutores eletroacustico e do tipo eletreto e processo de fabricacao do primeiro - Google Patents

Transdutores eletroacustico e do tipo eletreto e processo de fabricacao do primeiro

Info

Publication number
BR8307454A
BR8307454A BR8307454A BR8307454A BR8307454A BR 8307454 A BR8307454 A BR 8307454A BR 8307454 A BR8307454 A BR 8307454A BR 8307454 A BR8307454 A BR 8307454A BR 8307454 A BR8307454 A BR 8307454A
Authority
BR
Brazil
Prior art keywords
electric
manufacturing process
acoustic
type transducers
electric type
Prior art date
Application number
BR8307454A
Other languages
English (en)
Inventor
Alex Michael Brzezinski
Harold Jacob Hershey
Stephen Reed Whitesell
Original Assignee
Western Electric Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Western Electric Co filed Critical Western Electric Co
Publication of BR8307454A publication Critical patent/BR8307454A/pt

Links

Classifications

    • 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
    • H04R17/005—Piezoelectric transducers; Electrostrictive transducers using a piezoelectric polymer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets
    • 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
    • Y10T29/00—Metal working
    • Y10T29/42—Piezoelectric device making

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
BR8307454A 1982-07-28 1983-01-26 Transdutores eletroacustico e do tipo eletreto e processo de fabricacao do primeiro BR8307454A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/402,613 US4492825A (en) 1982-07-28 1982-07-28 Electroacoustic transducer
PCT/US1983/000119 WO1984000662A1 (en) 1982-07-28 1983-01-26 Electroacoustic transducer

Publications (1)

Publication Number Publication Date
BR8307454A true BR8307454A (pt) 1984-07-17

Family

ID=23592631

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8307454A BR8307454A (pt) 1982-07-28 1983-01-26 Transdutores eletroacustico e do tipo eletreto e processo de fabricacao do primeiro

Country Status (7)

Country Link
US (1) US4492825A (pt)
EP (1) EP0115485B1 (pt)
JP (1) JPS59501338A (pt)
BR (1) BR8307454A (pt)
CA (1) CA1199396A (pt)
DE (1) DE3364454D1 (pt)
WO (1) WO1984000662A1 (pt)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE428081B (sv) * 1981-10-07 1983-05-30 Ericsson Telefon Ab L M Tilledningsram for en elektretmikrofon
US4891843A (en) * 1983-02-24 1990-01-02 At&T Technologies, Inc. Electret microphone
US4701640A (en) * 1985-03-11 1987-10-20 Telex Communications, Inc. Electret transducer and method of fabrication
US4850227A (en) * 1987-12-22 1989-07-25 Delco Electronics Corporation Pressure sensor and method of fabrication thereof
US5168527A (en) * 1990-06-14 1992-12-01 Lzr Electronics, Inc. Miniature speaker variable standoff mount
NL9101563A (nl) * 1991-09-17 1993-04-16 Microtel Bv Elektroacoustische transducent van het elektreet type.
US5335286A (en) * 1992-02-18 1994-08-02 Knowles Electronics, Inc. Electret assembly
US6775388B1 (en) * 1998-07-16 2004-08-10 Massachusetts Institute Of Technology Ultrasonic transducers
JP2000050387A (ja) 1998-07-16 2000-02-18 Massachusetts Inst Of Technol <Mit> パラメトリックオ―ディオシステム
AU4034400A (en) * 1999-04-12 2000-11-14 Knowles Electronics, Llc. Package for micromachined silicon condenser microphone
US6842964B1 (en) 2000-09-29 2005-01-18 Tucker Davis Technologies, Inc. Process of manufacturing of electrostatic speakers
DE10053681B4 (de) * 2000-10-28 2004-08-26 W.L. Gore & Associates Gmbh Gehäuse mit mindestens einem EMI abschirmender Kunststoffkörper bzw. Be- und Entlüftungselement und Verfahren zur Herstellung eines solchen Kunststoffkörpers
KR200218653Y1 (ko) * 2000-11-01 2001-04-02 주식회사비에스이 일렉트렛 콘덴서 마이크로폰
US7065224B2 (en) 2001-09-28 2006-06-20 Sonionmicrotronic Nederland B.V. Microphone for a hearing aid or listening device with improved internal damping and foreign material protection
US7415121B2 (en) 2004-10-29 2008-08-19 Sonion Nederland B.V. Microphone with internal damping
US7795695B2 (en) 2005-01-27 2010-09-14 Analog Devices, Inc. Integrated microphone
US7885423B2 (en) * 2005-04-25 2011-02-08 Analog Devices, Inc. Support apparatus for microphone diaphragm
US7825484B2 (en) * 2005-04-25 2010-11-02 Analog Devices, Inc. Micromachined microphone and multisensor and method for producing same
US7449356B2 (en) * 2005-04-25 2008-11-11 Analog Devices, Inc. Process of forming a microphone using support member
US20070071268A1 (en) * 2005-08-16 2007-03-29 Analog Devices, Inc. Packaged microphone with electrically coupled lid
US20070040231A1 (en) * 2005-08-16 2007-02-22 Harney Kieran P Partially etched leadframe packages having different top and bottom topologies
US7961897B2 (en) * 2005-08-23 2011-06-14 Analog Devices, Inc. Microphone with irregular diaphragm
WO2007024909A1 (en) * 2005-08-23 2007-03-01 Analog Devices, Inc. Multi-microphone system
US8344487B2 (en) * 2006-06-29 2013-01-01 Analog Devices, Inc. Stress mitigation in packaged microchips
US8270634B2 (en) * 2006-07-25 2012-09-18 Analog Devices, Inc. Multiple microphone system
US20080175425A1 (en) * 2006-11-30 2008-07-24 Analog Devices, Inc. Microphone System with Silicon Microphone Secured to Package Lid
WO2008134530A2 (en) 2007-04-25 2008-11-06 University Of Florida Research Foundation, Inc. A capacitive microphone with integrated cavity
US7694610B2 (en) * 2007-06-27 2010-04-13 Siemens Medical Solutions Usa, Inc. Photo-multiplier tube removal tool
JP4435841B2 (ja) * 2008-05-28 2010-03-24 パナソニック株式会社 電子機器
DE202010001371U1 (de) * 2010-01-25 2011-06-01 Baumer Innotec Ag Ultraschallsensor und Vorrichtung zu dessen Halterung
US9676614B2 (en) 2013-02-01 2017-06-13 Analog Devices, Inc. MEMS device with stress relief structures
US10167189B2 (en) 2014-09-30 2019-01-01 Analog Devices, Inc. Stress isolation platform for MEMS devices
US10131538B2 (en) 2015-09-14 2018-11-20 Analog Devices, Inc. Mechanically isolated MEMS device
KR20210013152A (ko) 2018-05-24 2021-02-03 더 리서치 파운데이션 포 더 스테이트 유니버시티 오브 뉴욕 정전 용량 센서
US11417611B2 (en) 2020-02-25 2022-08-16 Analog Devices International Unlimited Company Devices and methods for reducing stress on circuit components
US11981560B2 (en) 2020-06-09 2024-05-14 Analog Devices, Inc. Stress-isolated MEMS device comprising substrate having cavity and method of manufacture

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5221046Y2 (pt) * 1971-08-31 1977-05-14
US3787642A (en) * 1971-09-27 1974-01-22 Gte Automatic Electric Lab Inc Electrostatic transducer having resilient electrode
JPS4861126A (pt) * 1971-12-02 1973-08-27
US3816671A (en) * 1972-04-06 1974-06-11 Thermo Electron Corp Electret transducer cartridge and case
US3963881A (en) * 1973-05-29 1976-06-15 Thermo Electron Corporation Unidirectional condenser microphone
JPS5636233Y2 (pt) * 1974-12-27 1981-08-26
US4046974A (en) * 1976-10-01 1977-09-06 Bell Telephone Laboratories, Incorporated Electroacoustic transducer with springs forming electrical interconnections as a result of assembly
CA1107382A (en) * 1978-11-03 1981-08-18 Beverley W. Gumb Electret microphone with simplified electrical connections by printed circuit board mounting
US4188513A (en) * 1978-11-03 1980-02-12 Northern Telecom Limited Electret microphone with simplified electrical connections by printed circuit board mounting
US4331840A (en) * 1980-02-22 1982-05-25 Lectret S.A. Electret transducer with tapered acoustic chamber
US4443666A (en) * 1980-11-24 1984-04-17 Gentex Corporation Electret microphone assembly

Also Published As

Publication number Publication date
WO1984000662A1 (en) 1984-02-16
EP0115485B1 (en) 1986-07-16
JPS59501338A (ja) 1984-07-26
EP0115485A1 (en) 1984-08-15
CA1199396A (en) 1986-01-14
DE3364454D1 (en) 1986-08-21
US4492825A (en) 1985-01-08

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