JP4113637B2 - 音響共振器とその製作方法 - Google Patents

音響共振器とその製作方法 Download PDF

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Publication number
JP4113637B2
JP4113637B2 JP15495699A JP15495699A JP4113637B2 JP 4113637 B2 JP4113637 B2 JP 4113637B2 JP 15495699 A JP15495699 A JP 15495699A JP 15495699 A JP15495699 A JP 15495699A JP 4113637 B2 JP4113637 B2 JP 4113637B2
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layer
electrode
twenty
depression
substrate
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JP2000069594A5 (enExample
JP2000069594A (ja
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リチャード・シー・ルービー
デサイ ヨゲシュ
ドナルド・アール・ブラドベリー
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アバゴ・テクノロジーズ・ワイヤレス・アイピー(シンガポール)プライベート・リミテッド
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    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic elements; 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
    • H03H3/00Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
    • H03H3/007Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
    • H03H3/02Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02Details
    • H03H9/02007Details of bulk acoustic wave devices
    • H03H9/02086Means for compensation or elimination of undesirable effects
    • H03H9/02133Means for compensation or elimination of undesirable effects of stress
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/46Filters
    • H03H9/54Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/58Multiple crystal filters
    • H03H9/582Multiple crystal filters implemented with thin-film techniques
    • H03H9/583Multiple crystal filters implemented with thin-film techniques comprising a plurality of piezoelectric layers acoustically coupled
    • H03H9/585Stacked Crystal Filters [SCF]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/42Piezoelectric device making

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
JP15495699A 1998-06-02 1999-06-02 音響共振器とその製作方法 Expired - Lifetime JP4113637B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US088,964 1987-08-21
US09/088,964 US6060818A (en) 1998-06-02 1998-06-02 SBAR structures and method of fabrication of SBAR.FBAR film processing techniques for the manufacturing of SBAR/BAR filters

Publications (3)

Publication Number Publication Date
JP2000069594A JP2000069594A (ja) 2000-03-03
JP2000069594A5 JP2000069594A5 (enExample) 2006-07-20
JP4113637B2 true JP4113637B2 (ja) 2008-07-09

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JP15495699A Expired - Lifetime JP4113637B2 (ja) 1998-06-02 1999-06-02 音響共振器とその製作方法

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US (1) US6060818A (enExample)
EP (1) EP0963040B1 (enExample)
JP (1) JP4113637B2 (enExample)
DE (1) DE69933907T2 (enExample)

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