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WO2008093532A1 - 弾性境界波装置 - Google Patents

弾性境界波装置 Download PDF

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Publication number
WO2008093532A1
WO2008093532A1 PCT/JP2008/050362 JP2008050362W WO2008093532A1 WO 2008093532 A1 WO2008093532 A1 WO 2008093532A1 JP 2008050362 W JP2008050362 W JP 2008050362W WO 2008093532 A1 WO2008093532 A1 WO 2008093532A1
Authority
WO
WIPO (PCT)
Prior art keywords
elastic boundary
boundary wave
wave device
single crystal
crystal substrate
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.)
Ceased
Application number
PCT/JP2008/050362
Other languages
English (en)
French (fr)
Inventor
Hajime Kando
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.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co 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 Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to JP2008556042A priority Critical patent/JPWO2008093532A1/ja
Publication of WO2008093532A1 publication Critical patent/WO2008093532A1/ja
Anticipated expiration legal-status Critical
Ceased 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 elements; 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 elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02543—Characteristics of substrate, e.g. cutting angles

Landscapes

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

Abstract

　ＳＨ型弾性境界波を利用しており、煩雑な工法を採用せずとも、狭帯域のフィルタや共振子に適した電気機械結合係数を得ることができる弾性境界波装置を得る。 　ほう酸リチウム系圧電単結晶基板２を用いており、該ほう酸リチウム系圧電単結晶基板２上にＩＤＴ４が形成されており、ＩＤＴ４を覆うように誘電体３が形成されており、ほう酸リチウム系単結晶基板２と誘電体３との境界を伝搬するＰ＋ＳＶ型の弾性境界波としてのストンリー波を利用しており、ほう酸リチウム系圧電単結晶基板２のオイラー角（φ，θ，ψ）が、図２、図６、図１０、図１４、図１８、図２２、図２６、図３０、図３４、図３８、図４２、図４６、図５０、図５４、図５８、図６２、図６６、図７０または図７４のそれぞれにおいて、電気機械結合係数Ｋ２が０．４％であることを示す線及び該線よりも電気機械結合係数Ｋ２が高い領域内のいずれかにある、弾性境界波装置１。
PCT/JP2008/050362 2007-01-30 2008-01-15 弾性境界波装置 Ceased WO2008093532A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008556042A JPWO2008093532A1 (ja) 2007-01-30 2008-01-15 弾性境界波装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-019877 2007-01-30
JP2007019877 2007-01-30

Publications (1)

Publication Number Publication Date
WO2008093532A1 true WO2008093532A1 (ja) 2008-08-07

Family

ID=39673846

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/050362 Ceased WO2008093532A1 (ja) 2007-01-30 2008-01-15 弾性境界波装置

Country Status (2)

Country Link
JP (1) JPWO2008093532A1 (ja)
WO (1) WO2008093532A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112054780A (zh) * 2019-06-06 2020-12-08 株式会社村田制作所 弹性波装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005069485A1 (ja) * 2004-01-13 2005-07-28 Murata Manufacturing Co., Ltd. 弾性境界波装置
WO2005099091A1 (ja) * 2004-04-08 2005-10-20 Murata Manufacturing Co., Ltd. 弾性境界波フィルタ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005069485A1 (ja) * 2004-01-13 2005-07-28 Murata Manufacturing Co., Ltd. 弾性境界波装置
WO2005099091A1 (ja) * 2004-04-08 2005-10-20 Murata Manufacturing Co., Ltd. 弾性境界波フィルタ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IRINO T. ET AL.: "Atsudentai no Tohotai no Kyokaimen o Denpan suru Stoneley Wave no Rironteki Kento", DENSHI TSUSHIN GAKKAI RONBUNSHI, vol. J67-C, no. 10, 3 December 1984 (1984-12-03), pages 727 - 732 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112054780A (zh) * 2019-06-06 2020-12-08 株式会社村田制作所 弹性波装置

Also Published As

Publication number Publication date
JPWO2008093532A1 (ja) 2010-05-20

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