WO2009054121A1 - 弾性境界波装置 - Google Patents

弾性境界波装置 Download PDF

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Publication number
WO2009054121A1
WO2009054121A1 PCT/JP2008/002976 JP2008002976W WO2009054121A1 WO 2009054121 A1 WO2009054121 A1 WO 2009054121A1 JP 2008002976 W JP2008002976 W JP 2008002976W WO 2009054121 A1 WO2009054121 A1 WO 2009054121A1
Authority
WO
WIPO (PCT)
Prior art keywords
medium layer
acoustic wave
wave device
boundary acoustic
along
Prior art date
Application number
PCT/JP2008/002976
Other languages
English (en)
French (fr)
Inventor
Kazunori Nishimura
Hiroyuki Nakamura
Hidekazu Nakanishi
Ryouichi Takayama
Takashi Inoue
Original Assignee
Panasonic Corporation
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 Panasonic Corporation filed Critical Panasonic Corporation
Priority to US12/680,774 priority Critical patent/US8154171B2/en
Priority to JP2009537934A priority patent/JP5041004B2/ja
Publication of WO2009054121A1 publication Critical patent/WO2009054121A1/ja

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
    • H03H9/02—Details
    • H03H9/0222—Details of interface-acoustic, boundary, pseudo-acoustic or Stonely wave devices
    • 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
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02543—Characteristics of substrate, e.g. cutting angles
    • H03H9/02574—Characteristics of substrate, e.g. cutting angles of combined substrates, multilayered substrates, piezoelectrical layers on not-piezoelectrical substrate

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)

Abstract

　弾性境界波装置は、圧電材料よりなる第１の媒質層と、第１の媒質層上に設けられた第２の媒質層と、第２の媒質層上に設けられた第３の媒質層と、第２の媒質と第３の媒質層との間の界面に設けられた電極とを備える。電極は第３の媒質層を駆動して横波を発生させる。第３の媒質層における横波の伝播速度は第１の媒質層における横波の伝播速度より小さい。第２の媒質層における横波の伝播速度が第１の媒質層における横波の伝播速度よりも小さい。この弾性境界波装置は、大きな電気機械結合係数が得られる。
PCT/JP2008/002976 2007-10-23 2008-10-21 弾性境界波装置 WO2009054121A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/680,774 US8154171B2 (en) 2007-10-23 2008-10-21 Boundary acoustic wave device
JP2009537934A JP5041004B2 (ja) 2007-10-23 2008-10-21 弾性境界波装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007274972 2007-10-23
JP2007-274972 2007-10-23

Publications (1)

Publication Number Publication Date
WO2009054121A1 true WO2009054121A1 (ja) 2009-04-30

Family

ID=40579229

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/002976 WO2009054121A1 (ja) 2007-10-23 2008-10-21 弾性境界波装置

Country Status (3)

Country Link
US (1) US8154171B2 (ja)
JP (1) JP5041004B2 (ja)
WO (1) WO2009054121A1 (ja)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0346232U (ja) * 1989-09-12 1991-04-30
WO1998052279A1 (fr) * 1997-05-12 1998-11-19 Hitachi, Ltd. Dispositif a onde elastique
JPH10335974A (ja) * 1997-05-29 1998-12-18 Matsushita Electric Ind Co Ltd 弾性境界波素子
WO2005069486A1 (ja) * 2004-01-19 2005-07-28 Murata Manufacturing Co., Ltd. 弾性境界波装置
JP2008067289A (ja) * 2006-09-11 2008-03-21 Fujitsu Media Device Kk 弾性波デバイスおよびフィルタ

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1928089A3 (en) * 2003-02-10 2009-01-14 Murata Manufacturing Co. Ltd. Boundary acoustic wave device
JP4337816B2 (ja) 2003-04-18 2009-09-30 株式会社村田製作所 弾性境界波装置
JP3894917B2 (ja) * 2003-11-12 2007-03-22 富士通メディアデバイス株式会社 弾性境界波デバイス及びその製造方法
US7355319B2 (en) * 2004-01-13 2008-04-08 Murata Manufacturing Co., Ltd. Boundary acoustic wave device
DE102004045181B4 (de) * 2004-09-17 2016-02-04 Epcos Ag SAW-Bauelement mit reduziertem Temperaturgang und Verfahren zur Herstellung
CN101454974B (zh) * 2006-05-30 2012-05-30 株式会社村田制作所 声界面波装置
WO2007138844A1 (ja) * 2006-05-30 2007-12-06 Murata Manufacturing Co., Ltd. 弾性波装置
WO2008078481A1 (ja) * 2006-12-25 2008-07-03 Murata Manufacturing Co., Ltd. 弾性境界波装置
DE102007012383B4 (de) * 2007-03-14 2011-12-29 Epcos Ag Mit geführten akustischen Volumenwellen arbeitendes Bauelement
CN101796727B (zh) * 2007-08-14 2016-04-27 太阳诱电株式会社 弹性边界波装置
JP4943514B2 (ja) * 2007-12-17 2012-05-30 太陽誘電株式会社 弾性波素子、通信モジュール、および通信装置
JP5125729B2 (ja) * 2008-04-28 2013-01-23 パナソニック株式会社 弾性波素子と、これを用いたフィルタ及び電子機器
WO2009139108A1 (ja) * 2008-05-12 2009-11-19 株式会社村田製作所 弾性境界波装置
JP2010011440A (ja) * 2008-05-30 2010-01-14 Hitachi Ltd 弾性波装置及びそれを用いた高周波フィルタ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0346232U (ja) * 1989-09-12 1991-04-30
WO1998052279A1 (fr) * 1997-05-12 1998-11-19 Hitachi, Ltd. Dispositif a onde elastique
JPH10335974A (ja) * 1997-05-29 1998-12-18 Matsushita Electric Ind Co Ltd 弾性境界波素子
WO2005069486A1 (ja) * 2004-01-19 2005-07-28 Murata Manufacturing Co., Ltd. 弾性境界波装置
JP2008067289A (ja) * 2006-09-11 2008-03-21 Fujitsu Media Device Kk 弾性波デバイスおよびフィルタ

Also Published As

Publication number Publication date
US20100219718A1 (en) 2010-09-02
JP5041004B2 (ja) 2012-10-03
US8154171B2 (en) 2012-04-10
JPWO2009054121A1 (ja) 2011-03-03

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