JPS5877921U - surface acoustic wave device - Google Patents
surface acoustic wave deviceInfo
- 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
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
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)
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.
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5541048A (en) * | 1978-09-18 | 1980-03-22 | Toshiba Corp | Surface acoustic wave element |
-
1981
- 1981-11-19 JP JP17139781U patent/JPS5877921U/en active Pending
Patent Citations (1)
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)
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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