JPH0246423U - - Google Patents
Info
- Publication number
- JPH0246423U JPH0246423U JP12534988U JP12534988U JPH0246423U JP H0246423 U JPH0246423 U JP H0246423U JP 12534988 U JP12534988 U JP 12534988U JP 12534988 U JP12534988 U JP 12534988U JP H0246423 U JPH0246423 U JP H0246423U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric
- electrode portion
- frequency adjustment
- resonator electrode
- piezoelectric element
- 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
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 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を示す断面図、第２
図は従来の２端子型の圧電フイルタを示す断面図
である。
１…圧電素子、２…圧電基板、３ａ，３ｂ…共
振子電極部、７ａ，７ｂ…周波数調整被膜、８ａ
，８ｂ…振動空間、９…外装樹脂層。
Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is a sectional view showing a conventional two-terminal piezoelectric filter. DESCRIPTION OF SYMBOLS 1... Piezoelectric element, 2... Piezoelectric substrate, 3a, 3b... Resonator electrode part, 7a, 7b... Frequency adjustment coating, 8a
, 8b... Vibration space, 9... Exterior resin layer.
Claims (1)
た圧電素子と、圧電基板のうち上記共振子電極部
が形成された面を被覆する周波数調整被膜と、上
記共振子電極部に対応して、周波数調整被膜と、
前記圧電素子を外装する外装樹脂層との間に形成
された振動空間とを有する圧電部品において、上
記周波数調整被膜の表面が粗面に形成されている
ことを特徴とする圧電部品。 a piezoelectric element having at least a resonator electrode portion formed on a piezoelectric substrate; a frequency adjustment coating covering a surface of the piezoelectric substrate on which the resonator electrode portion is formed; and a frequency adjustment coating corresponding to the resonator electrode portion. A coating;
A piezoelectric component having a vibration space formed between the piezoelectric element and an exterior resin layer that exteriorizes the piezoelectric element, wherein the frequency adjustment coating has a rough surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12534988U JPH0246423U (en) | 1988-09-26 | 1988-09-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12534988U JPH0246423U (en) | 1988-09-26 | 1988-09-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0246423U true JPH0246423U (en) | 1990-03-29 |
Family
ID=31375878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12534988U Pending JPH0246423U (en) | 1988-09-26 | 1988-09-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0246423U (en) |
-
1988
- 1988-09-26 JP JP12534988U patent/JPH0246423U/ja active Pending