JPWO2021025004A1 - - Google Patents

Info

Publication number
JPWO2021025004A1
JPWO2021025004A1 JP2021537314A JP2021537314A JPWO2021025004A1 JP WO2021025004 A1 JPWO2021025004 A1 JP WO2021025004A1 JP 2021537314 A JP2021537314 A JP 2021537314A JP 2021537314 A JP2021537314 A JP 2021537314A JP WO2021025004 A1 JPWO2021025004 A1 JP WO2021025004A1
Authority
JP
Japan
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
JP2021537314A
Other versions
JPWO2021025004A5 (ja
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 filed Critical
Publication of JPWO2021025004A1 publication Critical patent/JPWO2021025004A1/ja
Publication of JPWO2021025004A5 publication Critical patent/JPWO2021025004A5/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
    • H03H9/171—Constructional 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
    • H03H9/171—Constructional 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
    • H03H9/172—Means for mounting on a substrate, i.e. means constituting the material interface confining the waves to a volume
    • H03H9/175—Acoustic mirrors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02007—Details of bulk acoustic wave devices
    • H03H9/02015—Characteristics of piezoelectric layers, e.g. cutting angles
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02007—Details of bulk acoustic wave devices
    • H03H9/02015—Characteristics of piezoelectric layers, e.g. cutting angles
    • H03H9/02031—Characteristics of piezoelectric layers, e.g. cutting angles consisting of ceramic
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02007—Details of bulk acoustic wave devices
    • H03H9/02062—Details relating to the vibration mode
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/13—Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/56—Monolithic crystal filters
    • H03H9/564—Monolithic crystal filters implemented with thin-film techniques
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/56—Monolithic crystal filters
    • H03H9/566—Electric coupling means therefor
    • H03H9/568—Electric coupling means therefor consisting of a ladder configuration
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/542—Filters comprising resonators of piezoelectric or electrostrictive material including passive elements

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
JP2021537314A 2019-08-08 2020-08-04 Pending JPWO2021025004A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019145908 2019-08-08
PCT/JP2020/029759 WO2021025004A1 (ja) 2019-08-08 2020-08-04 弾性波デバイス

Publications (2)

Publication Number Publication Date
JPWO2021025004A1 true JPWO2021025004A1 (ja) 2021-02-11
JPWO2021025004A5 JPWO2021025004A5 (ja) 2022-06-07

Family

ID=74502981

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021537314A Pending JPWO2021025004A1 (ja) 2019-08-08 2020-08-04

Country Status (4)

Country Link
US (1) US20220294415A1 (ja)
JP (1) JPWO2021025004A1 (ja)
CN (1) CN114375544A (ja)
WO (1) WO2021025004A1 (ja)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09162683A (ja) * 1995-12-06 1997-06-20 Matsushita Electric Ind Co Ltd 圧電共振子
JP4321754B2 (ja) * 2003-07-31 2009-08-26 Ｔｄｋ株式会社 圧電共振器およびそれを用いたフィルタ
EP2530838B1 (en) * 2010-01-28 2018-11-07 Murata Manufacturing Co., Ltd. Tunable filter
FI123640B (fi) * 2010-04-23 2013-08-30 Teknologian Tutkimuskeskus Vtt Laajakaistainen akustisesti kytketty ohutkalvo-BAW-suodin
JP5716833B2 (ja) * 2011-09-01 2015-05-13 株式会社村田製作所 圧電バルク波装置及びその製造方法
FI124732B (en) * 2011-11-11 2014-12-31 Teknologian Tutkimuskeskus Vtt Laterally connected bulk wave filter with improved passband characteristics
JP6819005B2 (ja) * 2016-12-29 2021-01-27 新日本無線株式会社 バルク弾性波共振器

Also Published As

Publication number Publication date
WO2021025004A1 (ja) 2021-02-11
CN114375544A (zh) 2022-04-19
US20220294415A1 (en) 2022-09-15

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