JPS5877921U - surface acoustic wave device - Google Patents

surface acoustic wave device

Info

Publication number
JPS5877921U
JPS5877921U JP17139781U JP17139781U JPS5877921U JP S5877921 U JPS5877921 U JP S5877921U JP 17139781 U JP17139781 U JP 17139781U JP 17139781 U JP17139781 U JP 17139781U JP S5877921 U JPS5877921 U JP S5877921U
Authority
JP
Japan
Prior art keywords
surface acoustic
acoustic wave
wave device
piezoelectric substrate
absorbing material
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.)
Pending
Application number
JP17139781U
Other languages
Japanese (ja)
Inventor
坂本　信義
孝雄 千葉
Original Assignee
沖電気工業株式会社
日本放送協会
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 沖電気工業株式会社, 日本放送協会 filed Critical 沖電気工業株式会社
Priority to JP17139781U priority Critical patent/JPS5877921U/en
Publication of JPS5877921U publication Critical patent/JPS5877921U/en
Pending legal-status Critical Current

Links

Landscapes

  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の表面弾性波素子の平面図、第２図は従来
の表面弾性波素子断面図、第３図は本考案による第１の
実施例の表面弾性波素子の断面図、第４図は本考案によ
る第２の実施例の表面弾性波素子の断面図である。 Ｒ１，Ｒ２，Ｒ３，Ｒ４；テーパ部。FIG. 1 is a plan view of a conventional surface acoustic wave device, FIG. 2 is a cross-sectional view of a conventional surface acoustic wave device, FIG. 3 is a cross-sectional view of a surface acoustic wave device according to a first embodiment of the present invention, and FIG. The figure is a sectional view of a second embodiment of the surface acoustic wave device according to the present invention. R1, R2, R3, R4; Tapered portion.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 圧電基板と、その表面にもうけたすだれ状電極と、圧電
基板の端部にもうけられる吸音剤とを有する表面弾性波
素子において、圧電基板の端部にテーパがもうけられ、
その上に前記吸音剤がもうけられ、基板端部での表面弾
性波の反射のｉ響を軽減することを特徴とする表面弾性
波素子。In a surface acoustic wave element having a piezoelectric substrate, an interdigital electrode provided on the surface of the piezoelectric substrate, and a sound absorbing material provided at the end of the piezoelectric substrate, the end of the piezoelectric substrate is tapered,
A surface acoustic wave device, characterized in that the sound absorbing material is provided thereon to reduce the ionic effects of reflection of surface acoustic waves at the ends of the substrate.
JP17139781U 1981-11-19 1981-11-19 surface acoustic wave device Pending JPS5877921U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17139781U JPS5877921U (en) 1981-11-19 1981-11-19 surface acoustic wave device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17139781U JPS5877921U (en) 1981-11-19 1981-11-19 surface acoustic wave device

Publications (1)

Publication Number Publication Date
JPS5877921U true JPS5877921U (en) 1983-05-26

Family

ID=29963323

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17139781U Pending JPS5877921U (en) 1981-11-19 1981-11-19 surface acoustic wave device

Country Status (1)

Country Link
JP (1) JPS5877921U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005099090A1 (en) * 2004-04-08 2005-10-20 Murata Manufacturing Co., Ltd. Surface acoustic wave filter and manufacturing method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5541048A (en) * 1978-09-18 1980-03-22 Toshiba Corp Surface acoustic wave element

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5541048A (en) * 1978-09-18 1980-03-22 Toshiba Corp Surface acoustic wave element

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005099090A1 (en) * 2004-04-08 2005-10-20 Murata Manufacturing Co., Ltd. Surface acoustic wave filter and manufacturing method thereof
US7397327B2 (en) 2004-04-08 2008-07-08 Murata Manufacturing Co., Ltd. Surface acoustic wave filter and method of producing the same
CN100463365C (en) * 2004-04-08 2009-02-18 株式会社村田制作所 Surface acoustic wave filter and manufacturing method thereof

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