DE602006004289D1 - Piezoelektrischer Dünnschichtresonator und Filter - Google Patents

Piezoelektrischer Dünnschichtresonator und Filter

Info

Publication number
DE602006004289D1
DE602006004289D1 DE200660004289 DE602006004289T DE602006004289D1 DE 602006004289 D1 DE602006004289 D1 DE 602006004289D1 DE 200660004289 DE200660004289 DE 200660004289 DE 602006004289 T DE602006004289 T DE 602006004289T DE 602006004289 D1 DE602006004289 D1 DE 602006004289D1
Authority
DE
Germany
Prior art keywords
filter
piezoelectric thin
film resonator
resonator
film
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.)
Active
Application number
DE200660004289
Other languages
English (en)
Inventor
Shinji Taniguchi
Tsuyoshi Yokoyama
Motoaki Hara
Takeshi Sakashita
Jun Tsutsumi
Masafumi Iwaki
Tokihiro Nishihara
Masanori Ueda
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.)
Taiyo Yuden Co Ltd
Original Assignee
Fujitsu Ltd
Fujitsu Media Devices 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 Fujitsu Ltd, Fujitsu Media Devices Ltd filed Critical Fujitsu Ltd
Publication of DE602006004289D1 publication Critical patent/DE602006004289D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • H03H9/132Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials characterized by a particular shape
    • 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 devices; 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 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
    • H03H9/566Electric coupling means therefor
    • H03H9/568Electric coupling means therefor consisting of a ladder configuration
    • 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
    • H03H2003/021Apparatus 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 the resonators or networks being of the air-gap type

Landscapes

  • 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)
DE200660004289 2005-10-27 2006-10-24 Piezoelektrischer Dünnschichtresonator und Filter Active DE602006004289D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005312094A JP4707533B2 (ja) 2005-10-27 2005-10-27 圧電薄膜共振器およびフィルタ

Publications (1)

Publication Number Publication Date
DE602006004289D1 true DE602006004289D1 (de) 2009-01-29

Family

ID=37682623

Family Applications (1)

Application Number Title Priority Date Filing Date
DE200660004289 Active DE602006004289D1 (de) 2005-10-27 2006-10-24 Piezoelektrischer Dünnschichtresonator und Filter

Country Status (6)

Country Link
US (1) US7482738B2 (de)
EP (1) EP1783903B1 (de)
JP (1) JP4707533B2 (de)
KR (1) KR100819669B1 (de)
CN (1) CN100576734C (de)
DE (1) DE602006004289D1 (de)

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Also Published As

Publication number Publication date
KR100819669B1 (ko) 2008-04-04
KR20070045945A (ko) 2007-05-02
JP2007124166A (ja) 2007-05-17
US7482738B2 (en) 2009-01-27
JP4707533B2 (ja) 2011-06-22
EP1783903A3 (de) 2007-11-07
CN100576734C (zh) 2009-12-30
CN1956324A (zh) 2007-05-02
EP1783903B1 (de) 2008-12-17
US20070096597A1 (en) 2007-05-03
EP1783903A2 (de) 2007-05-09

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