JPH0346232U - - Google Patents
Info
- Publication number
- JPH0346232U JPH0346232U JP10743589U JP10743589U JPH0346232U JP H0346232 U JPH0346232 U JP H0346232U JP 10743589 U JP10743589 U JP 10743589U JP 10743589 U JP10743589 U JP 10743589U JP H0346232 U JPH0346232 U JP H0346232U
- Authority
- JP
- Japan
- Prior art keywords
- elastic body
- wall portion
- thin wall
- elastic
- boundary
- 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
- 238000013016 damping Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Description
第１図は本考案の一実施例である弾性波デバイ
スの垂直断面図である。第２図ａ，ｂ，ｃ，ｄ，
ｅは第１弾性体と第２弾性体の組合わせの変形例
を示す説明図である。第３図、第４図は本考案に
先行する技術を示し、第３図は弾性波デバイスの
平面図、第４図は第３図のＸ−Ｘ′の垂直断面図
である。
１……弾性波デバイス（弾性波フイルタ）、２
……第１弾性体、３……第２弾性体、４，４′…
…くし形電極、６，６′……ダンピング材。
FIG. 1 is a vertical sectional view of an acoustic wave device that is an embodiment of the present invention. Figure 2 a, b, c, d,
e is an explanatory diagram showing a modification of the combination of the first elastic body and the second elastic body. 3 and 4 show a technique prior to the present invention, in which FIG. 3 is a plan view of an acoustic wave device, and FIG. 4 is a vertical sectional view taken along line XX' in FIG. 3. 1...Elastic wave device (acoustic wave filter), 2
...First elastic body, 3...Second elastic body, 4,4'...
...Comb-shaped electrode, 6,6'...damping material.
Claims (1)
体と第２弾性体とを一対のくし形電極を間に挟ん
で接合し、前記第１弾性体と第２弾性体との接合
境界部分を弾性境界波の伝搬路とする一方、前記
第１弾性体と第２弾性体のうち少なくとも一方の
両端部分を段差を有する薄肉部とし、該薄肉部に
ダンピング材を設けたことを特徴とする弾性波デ
バイス。 A first elastic body and a second elastic body, at least one of which is made of a piezoelectric material, are joined with a pair of comb-shaped electrodes in between, and the joining boundary between the first elastic body and the second elastic body is an elastic boundary. An acoustic wave device characterized in that, while serving as a wave propagation path, both end portions of at least one of the first elastic body and the second elastic body have a thin wall portion having a step, and a damping material is provided in the thin wall portion. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10743589U JPH0346232U (en) | 1989-09-12 | 1989-09-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10743589U JPH0346232U (en) | 1989-09-12 | 1989-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0346232U true JPH0346232U (en) | 1991-04-30 |
Family
ID=31656127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10743589U Pending JPH0346232U (en) | 1989-09-12 | 1989-09-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0346232U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998051011A1 (en) * | 1997-05-08 | 1998-11-12 | Kabushiki Kaisha Toshiba | Elastic boundary wave device and method of its manufacture |
| JP2007329584A (en) * | 2006-06-06 | 2007-12-20 | Fujitsu Media Device Kk | Boundary acoustic wave element, resonator and filter |
| WO2009054121A1 (en) * | 2007-10-23 | 2009-04-30 | Panasonic Corporation | Boundary acoustic wave device |
-
1989
- 1989-09-12 JP JP10743589U patent/JPH0346232U/ja active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998051011A1 (en) * | 1997-05-08 | 1998-11-12 | Kabushiki Kaisha Toshiba | Elastic boundary wave device and method of its manufacture |
| CN100347953C (en) * | 1997-05-08 | 2007-11-07 | 东芝株式会社 | Elastic Boundary wave device and method for mfg. same |
| JP2007329584A (en) * | 2006-06-06 | 2007-12-20 | Fujitsu Media Device Kk | Boundary acoustic wave element, resonator and filter |
| WO2009054121A1 (en) * | 2007-10-23 | 2009-04-30 | Panasonic Corporation | Boundary acoustic wave device |
| US8154171B2 (en) | 2007-10-23 | 2012-04-10 | Panasonic Corporation | Boundary acoustic wave device |
| JP5041004B2 (en) * | 2007-10-23 | 2012-10-03 | パナソニック株式会社 | Boundary acoustic wave device |