EP4247006A3 - Mikromechanischer schallwandler - Google Patents

Mikromechanischer schallwandler Download PDF

Info

Publication number
EP4247006A3
EP4247006A3 EP23189034.4A EP23189034A EP4247006A3 EP 4247006 A3 EP4247006 A3 EP 4247006A3 EP 23189034 A EP23189034 A EP 23189034A EP 4247006 A3 EP4247006 A3 EP 4247006A3
Authority
EP
European Patent Office
Prior art keywords
bending transducer
free end
transducer
acoustic transducer
bending
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.)
Pending
Application number
EP23189034.4A
Other languages
English (en)
French (fr)
Other versions
EP4247006A2 (de
Inventor
Fabian STOPPEL
Bernhard Wagner
Shanshan Gu-Stoppel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of EP4247006A2 publication Critical patent/EP4247006A2/de
Publication of EP4247006A3 publication Critical patent/EP4247006A3/de
Pending legal-status Critical Current

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
    • 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
    • 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
    • H04R19/005—Electrostatic transducers using semiconductor materials
    • 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
    • H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/26—Damping by means acting directly on free portion of diaphragm or cone
    • 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
    • H04R19/02—Loudspeakers
    • 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
    • H04R19/04—Microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/003—Mems transducers or their use
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2440/00—Bending wave transducers covered by H04R, not provided for in its groups
    • H04R2440/01—Acoustic transducers using travelling bending waves to generate or detect sound
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's

Landscapes

  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Manufacturing & Machinery (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Micromachines (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Pressure Sensors (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

Ein mikromechanischer Schallwandler umfasst entsprechend einem ersten Aspekt einen ersten Biegewandler mit einem freien Ende und einem zweiten Biegewandler mit einem freien Ende, die in einer gemeinsamen Ebene angeordnet sind, wobei das freie Ende des ersten Biegewandlers von dem freien Ende des zweiten Biegewandlers durch einen Spalt getrennt ist. Der zweite Biegewandler wird phasengleich zu der vertikalen Schwingung des ersten Biegewandlers angeregt. Ein mikromechanischer Schallwandler umfasst gemäß einem zweiten Aspekt einen ersten Biegewandler, der vertikal zur Schwingung angeregt wird und einen vertikal zu dem ersten Biegewandler erstreckendes Blendenelement, das durch einen Spalt von einem freien Ende des ersten Biegewandlers getrennt ist.
EP23189034.4A 2017-05-26 2018-05-28 Mikromechanischer schallwandler Pending EP4247006A3 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102017208911.3A DE102017208911A1 (de) 2017-05-26 2017-05-26 Mikromechanischer Schallwandler
PCT/EP2018/063961 WO2018215669A2 (de) 2017-05-26 2018-05-28 Mikromechanischer schallwandler
EP18729366.7A EP3632135B1 (de) 2017-05-26 2018-05-28 Mikromechanischer schallwandler

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP18729366.7A Division EP3632135B1 (de) 2017-05-26 2018-05-28 Mikromechanischer schallwandler

Publications (2)

Publication Number Publication Date
EP4247006A2 EP4247006A2 (de) 2023-09-20
EP4247006A3 true EP4247006A3 (de) 2023-12-27

Family

ID=62530200

Family Applications (3)

Application Number Title Priority Date Filing Date
EP23189032.8A Pending EP4247005A3 (de) 2017-05-26 2018-05-28 Mikromechanischer schallwandler
EP18729366.7A Active EP3632135B1 (de) 2017-05-26 2018-05-28 Mikromechanischer schallwandler
EP23189034.4A Pending EP4247006A3 (de) 2017-05-26 2018-05-28 Mikromechanischer schallwandler

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP23189032.8A Pending EP4247005A3 (de) 2017-05-26 2018-05-28 Mikromechanischer schallwandler
EP18729366.7A Active EP3632135B1 (de) 2017-05-26 2018-05-28 Mikromechanischer schallwandler

Country Status (6)

Country Link
US (1) US11350217B2 (de)
EP (3) EP4247005A3 (de)
JP (2) JP7303121B2 (de)
CN (2) CN111034223A (de)
DE (1) DE102017208911A1 (de)
WO (1) WO2018215669A2 (de)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019201744B4 (de) * 2018-12-04 2020-06-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Mems-schallwandler
EP3675522A1 (de) * 2018-12-28 2020-07-01 Sonion Nederland B.V. Miniaturlautsprecher ohne wesentliche akustische leckage
JP2020136800A (ja) * 2019-02-15 2020-08-31 新日本無線株式会社 圧電素子
DE102019116080A1 (de) * 2019-06-13 2020-12-17 USound GmbH MEMS-Schallwandler mit einer aus Polymer ausgebildeten Membran
JP2021015899A (ja) * 2019-07-12 2021-02-12 新日本無線株式会社 圧電素子
DE102019218769A1 (de) * 2019-12-03 2020-11-19 Robert Bosch Gmbh Mikromechanisches Bauteil für eine Aktor- und/oder Sensorvorrichtung
JP7433870B2 (ja) 2019-12-04 2024-02-20 エルジー ディスプレイ カンパニー リミテッド 表示装置及び情報処理装置
US11202138B2 (en) * 2020-03-05 2021-12-14 Facebook Technologies, Llc Miniature high performance MEMS piezoelectric transducer for in-ear applications
CN111328005B (zh) * 2020-03-10 2021-09-10 瑞声声学科技(深圳)有限公司 压电式mems麦克风
DE112021001186T5 (de) * 2020-04-30 2022-12-15 Murata Manufacturing Co., Ltd. Piezoelektrisches bauelement
US11399228B2 (en) 2020-07-11 2022-07-26 xMEMS Labs, Inc. Acoustic transducer, wearable sound device and manufacturing method of acoustic transducer
US11972749B2 (en) * 2020-07-11 2024-04-30 xMEMS Labs, Inc. Wearable sound device
US11884535B2 (en) * 2020-07-11 2024-01-30 xMEMS Labs, Inc. Device, package structure and manufacturing method of device
US11323797B2 (en) * 2020-07-11 2022-05-03 xMEMS Labs, Inc. Acoustic transducer, wearable sound device and manufacturing method of acoustic transducer
CN213342677U (zh) * 2020-09-27 2021-06-01 瑞声科技（南京）有限公司 一种压电式麦克风
IT202000024469A1 (it) * 2020-10-16 2022-04-16 St Microelectronics Srl Trasduttore ultrasonico microlavorato piezoelettrico
US20230308810A1 (en) * 2021-01-14 2023-09-28 xMEMS Labs, Inc. Air-Pulse Generating Device
US20230292058A1 (en) * 2021-01-14 2023-09-14 xMEMS Labs, Inc. Air-Pulse Generating Device Producing Asymmetric Air Pulses
US20240128928A1 (en) * 2021-01-14 2024-04-18 xMEMS Labs, Inc. Demodulation Signal Generator for Air Pulse Generator
US20230300539A1 (en) * 2021-01-14 2023-09-21 xMEMS Labs, Inc. Air-Pulse Generating Device with Efficient Propagation
US11943585B2 (en) * 2021-01-14 2024-03-26 xMEMS Labs, Inc. Air-pulse generating device with common mode and differential mode movement
DE102021201784A1 (de) 2021-02-25 2022-08-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein MEMS-Schallwandler-Array
JP7452476B2 (ja) * 2021-03-10 2024-03-19 株式会社デンソー 圧電素子、圧電装置、および圧電素子の製造方法
DE102021202573B3 (de) 2021-03-16 2022-07-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Mems-schallwandler mit ausnehmungen und auskragungen
DE102021203360A1 (de) 2021-04-01 2022-10-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Mems-schallwandler
US20240022859A1 (en) * 2021-05-11 2024-01-18 xMEMS Labs, Inc. Package structure, apparatus and forming methods thereof
US11711653B2 (en) 2021-05-11 2023-07-25 xMEMS Labs, Inc. Sound producing cell and manufacturing method thereof
US20220408185A1 (en) * 2021-06-17 2022-12-22 Skyworks Solutions, Inc. Acoustic devices with feedback control of acoustic resistance
CN113365196B (zh) * 2021-07-05 2023-06-02 瑞声开泰科技(武汉)有限公司 Mems扬声器及mems扬声器制造方法
CN113852897A (zh) * 2021-08-02 2021-12-28 天津大学 压电mems扬声器及其设计方法、电子设备
WO2023010247A1 (zh) * 2021-08-02 2023-02-09 天津大学 压电mems扬声器及其设计方法、电子设备
DE102021130035A1 (de) * 2021-11-17 2023-05-17 USound GmbH MEMS-Schallwandler mit einer gekrümmten Kontur eines Kragarmelements
CN114339552A (zh) * 2021-12-31 2022-04-12 瑞声开泰科技(武汉)有限公司 一种发声装置
CN114513729B (zh) * 2022-01-07 2023-07-07 华为技术有限公司 电子设备及声学换能器
DE102022203173A1 (de) 2022-03-31 2023-10-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein MEMS-Schallwandler
EP4376442A2 (de) * 2022-04-08 2024-05-29 STMicroelectronics S.r.l. Mikroelektromechanischer membran-elektroakustikwandler
IT202200007043A1 (it) * 2022-04-08 2023-10-08 St Microelectronics Srl Trasduttore elettroacustico microelettromeccanico a membrana
EP4283609A1 (de) * 2022-05-28 2023-11-29 xMEMS Labs, Inc. Luftpulserzeugungsvorrichtung
DE102022210125A1 (de) 2022-09-26 2024-03-28 Robert Bosch Gesellschaft mit beschränkter Haftung Mikromechanische Schallwandlervorrichtung und entsprechendes Schallwandlungsverfahren
CN117729500B (zh) * 2024-02-08 2024-04-30 成都纤声科技有限公司 一种声学压电结构、声学传感器和电子设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006005048A1 (de) * 2005-03-01 2006-09-07 Denso Corp., Kariya Ultraschallsensor mit Sendeeinrichtung und Empfangseinrichtung für Ultraschallwellen
EP2254353A2 (de) * 2009-05-19 2010-11-24 Siemens Medical Instruments Pte. Ltd. Hörvorrichtung mit einem Schallwandler und Verfahren zum Herstellen eines Schallwandlers
DE102015210919A1 (de) * 2015-06-15 2016-12-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. MEMS-Wandler zum Interagieren mit einem Volumenstrom eines Fluids und Verfahren zum Herstellen desselben

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6496351B2 (en) 1999-12-15 2002-12-17 Jds Uniphase Inc. MEMS device members having portions that contact a substrate and associated methods of operating
US7089069B2 (en) 2001-08-17 2006-08-08 Carnegie Mellon University Method and apparatus for reconstruction of soundwaves from digital signals
US7003125B2 (en) 2001-09-12 2006-02-21 Seung-Hwan Yi Micromachined piezoelectric microspeaker and fabricating method thereof
US7444877B2 (en) 2002-08-20 2008-11-04 The Regents Of The University Of California Optical waveguide vibration sensor for use in hearing aid
EP1922898A1 (de) * 2005-09-09 2008-05-21 Yamaha Corporation Kondensatormikrofon
KR101759042B1 (ko) 2007-11-21 2017-07-17 오디오 픽셀즈 리미티드 디지털 스피커 장치의 작동 장치 및 작동 시스템
CN104602170B (zh) 2008-06-30 2019-08-13 密歇根大学董事会 压电mems麦克风
KR101562339B1 (ko) 2008-09-25 2015-10-22 삼성전자 주식회사 압전형 마이크로 스피커 및 그 제조 방법
KR101561663B1 (ko) 2009-08-31 2015-10-21 삼성전자주식회사 피스톤 다이어프램을 가진 압전형 마이크로 스피커 및 그 제조 방법
FR2955443B1 (fr) 2010-01-19 2012-03-23 Univ Maine Structure de haut-parleur electrodynamique a technologie mems
DE102010009453A1 (de) 2010-02-26 2011-09-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Schallwandler zum Einsetzen in ein Ohr
CN101841756A (zh) * 2010-03-29 2010-09-22 瑞声声学科技(深圳)有限公司 振膜及应用该振膜的硅电容麦克风
WO2012102073A1 (ja) * 2011-01-28 2012-08-02 国立大学法人東京大学 差圧センサ
WO2013002847A1 (en) 2011-03-31 2013-01-03 Bakr-Calling, Inc. Acoustic transducer with gap-controlling geometry and method of manufacturing an acoustic transducer
FR2990320B1 (fr) 2012-05-07 2014-06-06 Commissariat Energie Atomique Haut-parleur digital a performance amelioree
DE102012107457B4 (de) * 2012-08-14 2017-05-24 Tdk Corporation MEMS-Bauelement mit Membran und Verfahren zur Herstellung
JP6021110B2 (ja) 2012-12-28 2016-11-02 国立大学法人 東京大学 感圧型センサ
US9092585B2 (en) 2013-01-22 2015-07-28 The Procter & Gamble Company Computer based models for absorbent articles
US9212045B1 (en) 2014-07-31 2015-12-15 Infineon Technologies Ag Micro mechanical structure and method for fabricating the same
DE102015213771A1 (de) * 2015-07-22 2017-01-26 Robert Bosch Gmbh MEMS-Bauelement mit schalldruckempfindlichem Membranelement
KR101725728B1 (ko) * 2016-05-30 2017-04-13 김중배 모션 피드백 기능을 갖는 차동 스피커 장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006005048A1 (de) * 2005-03-01 2006-09-07 Denso Corp., Kariya Ultraschallsensor mit Sendeeinrichtung und Empfangseinrichtung für Ultraschallwellen
EP2254353A2 (de) * 2009-05-19 2010-11-24 Siemens Medical Instruments Pte. Ltd. Hörvorrichtung mit einem Schallwandler und Verfahren zum Herstellen eines Schallwandlers
DE102015210919A1 (de) * 2015-06-15 2016-12-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. MEMS-Wandler zum Interagieren mit einem Volumenstrom eines Fluids und Verfahren zum Herstellen desselben

Also Published As

Publication number Publication date
JP2023029908A (ja) 2023-03-07
JP7303121B2 (ja) 2023-07-04
EP3632135B1 (de) 2023-08-02
EP3632135A2 (de) 2020-04-08
CN111034223A (zh) 2020-04-17
EP4247006A2 (de) 2023-09-20
WO2018215669A2 (de) 2018-11-29
EP4247005A3 (de) 2023-12-06
DE102017208911A1 (de) 2018-11-29
CN116668926A (zh) 2023-08-29
US20200100033A1 (en) 2020-03-26
US11350217B2 (en) 2022-05-31
JP2020522178A (ja) 2020-07-27
WO2018215669A3 (de) 2019-01-24
EP4247005A2 (de) 2023-09-20

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