JPH0224317Y2 - - Google Patents
Info
- Publication number
- JPH0224317Y2 JPH0224317Y2 JP1955685U JP1955685U JPH0224317Y2 JP H0224317 Y2 JPH0224317 Y2 JP H0224317Y2 JP 1955685 U JP1955685 U JP 1955685U JP 1955685 U JP1955685 U JP 1955685U JP H0224317 Y2 JPH0224317 Y2 JP H0224317Y2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- wiring board
- printed wiring
- piezoelectric
- circuit pattern
- 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.)
- Expired
Links
- 239000000463 material Substances 0.000 description 11
- 238000013016 damping Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Piezo-Electric Transducers For Audible Bands (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Structure Of Printed Boards (AREA)
- Telephone Set Structure (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1955685U JPH0224317Y2 (en]) | 1985-02-14 | 1985-02-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1955685U JPH0224317Y2 (en]) | 1985-02-14 | 1985-02-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61136699U JPS61136699U (en]) | 1986-08-25 |
| JPH0224317Y2 true JPH0224317Y2 (en]) | 1990-07-03 |
Family
ID=30509239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1955685U Expired JPH0224317Y2 (en]) | 1985-02-14 | 1985-02-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0224317Y2 (en]) |
-
1985
- 1985-02-14 JP JP1955685U patent/JPH0224317Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61136699U (en]) | 1986-08-25 |
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