JPH0322426U - - Google Patents
Info
- Publication number
- JPH0322426U JPH0322426U JP8324889U JP8324889U JPH0322426U JP H0322426 U JPH0322426 U JP H0322426U JP 8324889 U JP8324889 U JP 8324889U JP 8324889 U JP8324889 U JP 8324889U JP H0322426 U JPH0322426 U JP H0322426U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric
- resonant
- shield layer
- unit
- plate
- 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
- 239000000758 substrate Substances 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 2
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
第１図は本考案の一実施例の圧電共振子の分解
斜視図、第２図ａ及びｂは従来の圧電共振子の斜
視図及び断面図、第３図ａ及びｂは本考案の一実
施例に用いられる圧電共振ユニツトの平面図及び
底面図、第４図は保護基板の構造を説明するため
の分解斜視図、第５図は保護基板の断面図、第６
図は本考案の一実施例の圧電共振子の外観斜視図
、第７図は本考案の他の実施例を圧電共振子の外
観斜視図である。
図において、１１……圧電共振ユニツト、１１
ａ……圧電板、１２，１３……保護基板、１４ａ
，１４ｂ，１５……共振電極、２０……支持基板
、２１……シールド層としてのシールド電極、２
２……絶縁保護層としての絶縁板、２２ａ……凹
部を示す。
FIG. 1 is an exploded perspective view of a piezoelectric resonator according to an embodiment of the present invention, FIGS. 2 a and b are perspective views and cross-sectional views of a conventional piezoelectric resonator, and FIGS. 3 a and b are an embodiment of the present invention. A top view and a bottom view of the piezoelectric resonant unit used in the example, FIG. 4 is an exploded perspective view for explaining the structure of the protective substrate, FIG. 5 is a sectional view of the protective substrate, and FIG.
The figure is an external perspective view of a piezoelectric resonator according to one embodiment of the present invention, and FIG. 7 is an external perspective view of a piezoelectric resonator according to another embodiment of the present invention. In the figure, 11...piezoelectric resonance unit, 11
a... Piezoelectric plate, 12, 13... Protection board, 14a
, 14b, 15... Resonance electrode, 20... Support substrate, 21... Shield electrode as a shield layer, 2
2... Insulating plate as an insulating protective layer, 22a... Recessed portion.
Claims (1)
り共振部が構成された板状の圧電共振ユニツトと
、 前記圧電共振ユニツトの両主面に貼付けられた
保護基板とを備える圧電共振子において、 前記保護基板が、シールド層が前記圧電共振ユ
ニツト側主面のほぼ全域に形成された支持基板と
、前記シールド層を被覆するようにシールド層上
に設けられており、かつ共振ユニツトの共振を妨
げない空間を与えるための凹部を有する絶縁保護
層とをそなえることを特徴とする圧電共振子。[Claims for Utility Model Registration] A plate-shaped piezoelectric resonant unit in which a resonant portion is formed by forming resonant electrodes on both main surfaces of a piezoelectric plate, and a protective substrate attached to both main surfaces of the piezoelectric resonant unit. In the piezoelectric resonator, the protective substrate is provided on a support substrate in which a shield layer is formed over almost the entire main surface on the side of the piezoelectric resonator unit, and on the shield layer so as to cover the shield layer. , and an insulating protective layer having a recess for providing a space that does not interfere with the resonance of the resonant unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8324889U JPH0322426U (en) | 1989-07-14 | 1989-07-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8324889U JPH0322426U (en) | 1989-07-14 | 1989-07-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0322426U true JPH0322426U (en) | 1991-03-07 |
Family
ID=31630754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8324889U Pending JPH0322426U (en) | 1989-07-14 | 1989-07-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0322426U (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS586427B2 (en) * | 1975-09-04 | 1983-02-04 | ソニー株式会社 | Noise temperature warmer |
| JPS5838004A (en) * | 1981-08-31 | 1983-03-05 | Mitsubishi Electric Corp | Electronic controlled antenna |
| JPS63518B2 (en) * | 1979-07-03 | 1988-01-07 | Guriko Metaru Ueruke Deeren Unto Ruusu Gmbh | |
| JPH0230636B2 (en) * | 1982-01-21 | 1990-07-09 | Matsushita Electric Ind Co Ltd | WAIYAADO * RIMOOTOKONTOROORUSOCHI |
-
1989
- 1989-07-14 JP JP8324889U patent/JPH0322426U/ja active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS586427B2 (en) * | 1975-09-04 | 1983-02-04 | ソニー株式会社 | Noise temperature warmer |
| JPS63518B2 (en) * | 1979-07-03 | 1988-01-07 | Guriko Metaru Ueruke Deeren Unto Ruusu Gmbh | |
| JPS5838004A (en) * | 1981-08-31 | 1983-03-05 | Mitsubishi Electric Corp | Electronic controlled antenna |
| JPH0230636B2 (en) * | 1982-01-21 | 1990-07-09 | Matsushita Electric Ind Co Ltd | WAIYAADO * RIMOOTOKONTOROORUSOCHI |