CN116545406A - 用于大功率应用的横向激励薄膜体声波谐振器 - Google Patents

用于大功率应用的横向激励薄膜体声波谐振器 Download PDF

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Publication number
CN116545406A
CN116545406A CN202310512524.8A CN202310512524A CN116545406A CN 116545406 A CN116545406 A CN 116545406A CN 202310512524 A CN202310512524 A CN 202310512524A CN 116545406 A CN116545406 A CN 116545406A
Authority
CN
China
Prior art keywords
idt
thickness
piezoelectric plate
equal
diaphragm
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
CN202310512524.8A
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English (en)
Chinese (zh)
Inventor
布莱恩特·加西亚
罗伯特·B·哈蒙德
帕特里克·特纳
尼尔·芬齐
维克多·普莱斯基
温切斯拉夫·扬捷切夫
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.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
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
Priority claimed from US16/578,811 external-priority patent/US10637438B2/en
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to CN202310512524.8A priority Critical patent/CN116545406A/zh
Publication of CN116545406A publication Critical patent/CN116545406A/zh
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02Details
    • H03H9/02228Guided bulk acoustic wave devices or Lamb wave devices having interdigital transducers situated in parallel planes on either side of a piezoelectric layer
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/15Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/17Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
    • H03H9/171Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator implemented with thin-film techniques, i.e. of the film bulk acoustic resonator [FBAR] type
    • H03H9/172Means for mounting on a substrate, i.e. means constituting the material interface confining the waves to a volume
    • H03H9/174Membranes
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02Details
    • H03H9/02007Details of bulk acoustic wave devices
    • H03H9/02015Characteristics of piezoelectric layers, e.g. cutting angles
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02Details
    • H03H9/02007Details of bulk acoustic wave devices
    • H03H9/02086Means for compensation or elimination of undesirable effects
    • H03H9/02125Means for compensation or elimination of undesirable effects of parasitic elements
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02Details
    • H03H9/02007Details of bulk acoustic wave devices
    • H03H9/02157Dimensional parameters, e.g. ratio between two dimension parameters, length, width or thickness
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02Details
    • H03H9/125Driving means, e.g. electrodes, coils
    • H03H9/13Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials
    • H03H9/131Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials consisting of a multilayered structure
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/15Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/17Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
    • H03H9/178Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator of a laminated structure of multiple piezoelectric layers with inner electrodes
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46Filters
    • H03H9/54Filters comprising resonators of piezoelectric or electrostrictive material
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46Filters
    • H03H9/54Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/56Monolithic crystal filters
    • H03H9/564Monolithic crystal filters implemented with thin-film techniques
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46Filters
    • H03H9/54Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/56Monolithic crystal filters
    • H03H9/566Electric coupling means therefor
    • H03H9/568Electric coupling means therefor consisting of a ladder configuration

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
CN202310512524.8A 2019-09-23 2020-10-08 用于大功率应用的横向激励薄膜体声波谐振器 Pending CN116545406A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310512524.8A CN116545406A (zh) 2019-09-23 2020-10-08 用于大功率应用的横向激励薄膜体声波谐振器

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US16/578,811 US10637438B2 (en) 2018-06-15 2019-09-23 Transversely-excited film bulk acoustic resonators for high power applications
CN202080066592.0A CN115004548B (zh) 2019-09-23 2020-10-08 用于大功率应用的横向激励薄膜体声波谐振器
PCT/US2020/054811 WO2021062421A1 (en) 2019-09-23 2020-10-08 Transversely-excited film bulk acoustic resonators for high power applications
CN202310512524.8A CN116545406A (zh) 2019-09-23 2020-10-08 用于大功率应用的横向激励薄膜体声波谐振器

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN202080066592.0A Division CN115004548B (zh) 2019-09-23 2020-10-08 用于大功率应用的横向激励薄膜体声波谐振器

Publications (1)

Publication Number Publication Date
CN116545406A true CN116545406A (zh) 2023-08-04

Family

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Family Applications (5)

Application Number Title Priority Date Filing Date
CN202310513637.XA Pending CN116545408A (zh) 2019-09-23 2020-10-08 用于大功率应用的横向激励薄膜体声波谐振器
CN202310511615.XA Pending CN116545405A (zh) 2019-09-23 2020-10-08 用于大功率应用的横向激励薄膜体声波谐振器
CN202310513628.0A Pending CN116545407A (zh) 2019-09-23 2020-10-08 用于大功率应用的横向激励薄膜体声波谐振器
CN202310512524.8A Pending CN116545406A (zh) 2019-09-23 2020-10-08 用于大功率应用的横向激励薄膜体声波谐振器
CN202080066592.0A Active CN115004548B (zh) 2019-09-23 2020-10-08 用于大功率应用的横向激励薄膜体声波谐振器

Family Applications Before (3)

Application Number Title Priority Date Filing Date
CN202310513637.XA Pending CN116545408A (zh) 2019-09-23 2020-10-08 用于大功率应用的横向激励薄膜体声波谐振器
CN202310511615.XA Pending CN116545405A (zh) 2019-09-23 2020-10-08 用于大功率应用的横向激励薄膜体声波谐振器
CN202310513628.0A Pending CN116545407A (zh) 2019-09-23 2020-10-08 用于大功率应用的横向激励薄膜体声波谐振器

Family Applications After (1)

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CN202080066592.0A Active CN115004548B (zh) 2019-09-23 2020-10-08 用于大功率应用的横向激励薄膜体声波谐振器

Country Status (4)

Country Link
JP (1) JP2022540515A (de)
CN (5) CN116545408A (de)
DE (1) DE112020004488B8 (de)
WO (1) WO2021062421A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024043344A1 (ja) * 2022-08-26 2024-02-29 株式会社村田製作所 弾性波装置
WO2024055388A1 (en) * 2022-09-14 2024-03-21 Huawei Technologies Co., Ltd. Acoustic resonator

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5601377B2 (ja) * 2010-11-30 2014-10-08 株式会社村田製作所 弾性波装置及びその製造方法
CN106664072A (zh) * 2014-07-31 2017-05-10 天工滤波方案日本有限公司 声波滤波器和使用其的双工器
CN109075763B (zh) * 2016-04-27 2022-06-10 京瓷株式会社 弹性波元件以及通信装置
JP2017224890A (ja) 2016-06-13 2017-12-21 株式会社村田製作所 弾性波装置
US10491192B1 (en) 2018-06-15 2019-11-26 Resonant Inc. Transversely-excited film bulk acoustic resonator
US11264966B2 (en) * 2018-06-15 2022-03-01 Resonant Inc. Solidly-mounted transversely-excited film bulk acoustic resonator with diamond layers in Bragg reflector stack
WO2020100744A1 (ja) * 2018-11-16 2020-05-22 株式会社村田製作所 弾性波装置
US11901873B2 (en) * 2019-03-14 2024-02-13 Murata Manufacturing Co., Ltd. Transversely-excited film bulk acoustic resonator with partial BRAGG reflectors
CN113765495A (zh) * 2020-05-19 2021-12-07 谐振公司 用于大功率应用的使用yx切割的铌酸锂的横向激励的薄膜体声波谐振器

Also Published As

Publication number Publication date
WO2021062421A1 (en) 2021-04-01
CN115004548A (zh) 2022-09-02
CN115004548B (zh) 2023-05-26
CN116545407A (zh) 2023-08-04
JP2022540515A (ja) 2022-09-15
DE112020004488T5 (de) 2022-10-13
DE112020004488B4 (de) 2023-05-25
CN116545405A (zh) 2023-08-04
CN116545408A (zh) 2023-08-04
DE112020004488B8 (de) 2023-08-03

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