SG10202004451PA - Film bulk acoustic resonator including recessed frame with scattering sides - Google Patents

Film bulk acoustic resonator including recessed frame with scattering sides

Info

Publication number
SG10202004451PA
SG10202004451PA SG10202004451PA SG10202004451PA SG10202004451PA SG 10202004451P A SG10202004451P A SG 10202004451PA SG 10202004451P A SG10202004451P A SG 10202004451PA SG 10202004451P A SG10202004451P A SG 10202004451PA SG 10202004451P A SG10202004451P A SG 10202004451PA
Authority
SG
Singapore
Prior art keywords
bulk acoustic
acoustic resonator
film bulk
resonator including
recessed frame
Prior art date
Application number
SG10202004451PA
Inventor
Benjamin Paul Abbott
Li Chen
Chun Sing Lam
Jiansong Liu
Yuhao Liu
Kwang Jae Shin
Yiliu Wang
Original Assignee
Skyworks Global Pte 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
Application filed by Skyworks Global Pte Ltd filed Critical Skyworks Global Pte Ltd
Publication of SG10202004451PA publication Critical patent/SG10202004451PA/en

Links

Classifications

    • 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
    • H03H9/0211Means for compensation or elimination of undesirable effects of reflections
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/0004Impedance-matching networks
    • H03H9/0014Impedance-matching networks using bulk acoustic wave devices
    • 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
    • H03H9/02118Means for compensation or elimination of undesirable effects of lateral leakage between adjacent resonators
    • 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
    • H03H9/173Air-gaps
    • 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 piezo-electric 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
    • H03H9/70Multiple-port networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
    • H03H9/703Networks using bulk acoustic wave devices
    • H03H9/706Duplexers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40Circuits
SG10202004451PA 2019-05-23 2020-05-13 Film bulk acoustic resonator including recessed frame with scattering sides SG10202004451PA (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201962851844P 2019-05-23 2019-05-23

Publications (1)

Publication Number Publication Date
SG10202004451PA true SG10202004451PA (en) 2020-12-30

Family

ID=73454799

Family Applications (1)

Application Number Title Priority Date Filing Date
SG10202004451PA SG10202004451PA (en) 2019-05-23 2020-05-13 Film bulk acoustic resonator including recessed frame with scattering sides

Country Status (3)

Country Link
US (1) US11595018B2 (en)
JP (1) JP2020191637A (en)
SG (1) SG10202004451PA (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200030478A (en) 2018-09-12 2020-03-20 스카이워크스 글로벌 피티이. 엘티디. Recess frame structure for a bulk acoustic wave resonator
US11601113B2 (en) 2019-05-24 2023-03-07 Skyworks Global Pte. Ltd. Bulk acoustic wave/film bulk acoustic wave resonator and filter for wide bandwidth applications
US11601112B2 (en) 2019-05-24 2023-03-07 Skyworks Global Pte. Ltd. Bulk acoustic wave/film bulk acoustic wave resonator and filter for wide bandwidth applications
US11165410B2 (en) * 2019-10-01 2021-11-02 Avago Technologies International Sales Pte. Limited Bulk acoustic wave resonator
KR20210126966A (en) * 2020-04-13 2021-10-21 삼성전기주식회사 Bulk-acoustic wave resonator

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JP2008035358A (en) 2006-07-31 2008-02-14 Hitachi Media Electoronics Co Ltd Thin film piezoelectric bulk wave resonator and high frequency filter using it
JP5013227B2 (en) 2007-04-11 2012-08-29 株式会社村田製作所 Piezoelectric thin film filter
WO2011036979A1 (en) 2009-09-28 2011-03-31 太陽誘電株式会社 Acoustic wave device
US8796904B2 (en) 2011-10-31 2014-08-05 Avago Technologies General Ip (Singapore) Pte. Ltd. Bulk acoustic resonator comprising piezoelectric layer and inverse piezoelectric layer
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JP2013038471A (en) 2011-08-03 2013-02-21 Taiyo Yuden Co Ltd Acoustic wave filter
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KR20200030478A (en) 2018-09-12 2020-03-20 스카이워크스 글로벌 피티이. 엘티디. Recess frame structure for a bulk acoustic wave resonator
KR20200131528A (en) 2019-05-14 2020-11-24 삼성전기주식회사 Filter including acoustic wave resonator
US11601113B2 (en) 2019-05-24 2023-03-07 Skyworks Global Pte. Ltd. Bulk acoustic wave/film bulk acoustic wave resonator and filter for wide bandwidth applications
US11601112B2 (en) 2019-05-24 2023-03-07 Skyworks Global Pte. Ltd. Bulk acoustic wave/film bulk acoustic wave resonator and filter for wide bandwidth applications

Also Published As

Publication number Publication date
US11595018B2 (en) 2023-02-28
US20200373901A1 (en) 2020-11-26
JP2020191637A (en) 2020-11-26

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