JPH0480125U - - Google Patents
Info
- Publication number
- JPH0480125U JPH0480125U JP12546890U JP12546890U JPH0480125U JP H0480125 U JPH0480125 U JP H0480125U JP 12546890 U JP12546890 U JP 12546890U JP 12546890 U JP12546890 U JP 12546890U JP H0480125 U JPH0480125 U JP H0480125U
- Authority
- JP
- Japan
- Prior art keywords
- holes
- input
- electrode
- piezoelectric filter
- insulating substrate
- 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.)
- Granted
Links
- 239000000758 substrate Substances 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims 2
- 239000002184 metal Substances 0.000 claims 2
- 238000007789 sealing Methods 0.000 claims 1
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
第1図a,b,cは第1の実施例を示す図、第
2図a,bは第2の実施例を示す図、第3図は従
来例を示す図である。
1,4,5……MCF、2,6……絶縁基板。
FIGS. 1a, b, and c show a first embodiment, FIGS. 2a and b show a second embodiment, and FIG. 3 shows a conventional example. 1, 4, 5...MCF, 2, 6...Insulating substrate.
Claims (1)
に絶縁材を介して貫通して設けられたベースにア
ース端子が接続されるとともに、このベース上に
設置された圧電フイルタ素子をキヤンにて気密封
止してなる圧電フイルタと、この圧電フイルタの
底部に設けられた絶縁基板とからなる表面実装型
圧電フイルタにおいて、この絶縁基板には前記各
端子の貫通する透孔が設けられるとともに、これ
ら透孔の内壁には電極が設けられ、かつ絶縁基板
の表面には上記透孔に設けられた各電極と入出力
電極あるいはアース電極の間にはフイルタ回路が
形成され、また裏面には入出力端子用の透孔以外
の大部分において接地されたシールド電極が形成
されていることを特徴とする表面実装型圧電フイ
ルタ。 (2) 少なくとも入、出力端子が金属製のシエル
に絶縁材を介して貫通して設けられたベースにア
ース端子が接続されるとともに、このベース上に
設置された圧電フイルタ素子をキヤンにて気密封
止してなる圧電フイルタを、複数個絶縁基板に設
置して一体化した表面実装型圧電フイルタにおい
て、この絶縁基板には前記各端子の貫通する透孔
が設けられるとともに、これら透孔の内壁には電
極が設けられ、かつ絶縁基板の表面には上記透孔
に設けられた各電極と入出力電極あるいはアース
電極の間にはフイルタ回路が形成され、また裏面
には入出力端子用の透孔以外の大部分において接
地されたシールド電極が形成されているているこ
とを特徴とする表面実装型圧電フイルタ。[Claims for Utility Model Registration] (1) At least the input and output terminals are connected to a base that is provided through an insulating material through a metal shell, and the earth terminal is installed on this base. A surface-mounted piezoelectric filter includes a piezoelectric filter formed by hermetically sealing a piezoelectric filter element in a can, and an insulating substrate provided at the bottom of the piezoelectric filter. Holes are provided, electrodes are provided on the inner walls of these through holes, and a filter circuit is formed on the surface of the insulating substrate between each electrode provided in the through holes and the input/output electrode or the ground electrode. Further, a surface-mounted piezoelectric filter is characterized in that a shield electrode is formed on the back surface of the filter, which is grounded in most of the areas other than the through holes for input/output terminals. (2) At least the input and output terminals are connected to a base that is provided through an insulating material through a metal shell, and the piezoelectric filter element installed on this base is connected to the can. In a surface-mounted piezoelectric filter in which a plurality of hermetically sealed piezoelectric filters are installed and integrated on an insulating substrate, the insulating substrate is provided with through holes through which the terminals pass, and the inner walls of these through holes are provided. are provided with electrodes, and a filter circuit is formed on the front surface of the insulating substrate between each electrode provided in the through hole and the input/output electrode or the ground electrode, and a transparent circuit for input/output terminals is provided on the back surface. A surface-mounted piezoelectric filter characterized in that a grounded shield electrode is formed in most of the areas other than the holes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990125468U JP2583990Y2 (en) | 1990-11-27 | 1990-11-27 | Surface mount type piezoelectric filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990125468U JP2583990Y2 (en) | 1990-11-27 | 1990-11-27 | Surface mount type piezoelectric filter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0480125U true JPH0480125U (en) | 1992-07-13 |
JP2583990Y2 JP2583990Y2 (en) | 1998-10-27 |
Family
ID=31873064
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1990125468U Expired - Fee Related JP2583990Y2 (en) | 1990-11-27 | 1990-11-27 | Surface mount type piezoelectric filter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2583990Y2 (en) |
Citations (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51161081U (en) * | 1975-06-16 | 1976-12-22 | ||
JPS5248991A (en) * | 1975-10-17 | 1977-04-19 | Citizen Watch Co Ltd | Practical structure of quartz oscillator |
JPS5338937U (en) * | 1976-09-09 | 1978-04-05 | ||
JPS5389131U (en) * | 1976-12-21 | 1978-07-21 | ||
JPS5389644A (en) * | 1977-01-14 | 1978-08-07 | Motorola Inc | Multipolar resonator |
JPS5757019A (en) * | 1980-09-24 | 1982-04-06 | Fujitsu Ltd | Surface acoustic wave filter |
JPS5757018A (en) * | 1980-09-24 | 1982-04-06 | Fujitsu Ltd | Surface acoustic wave filter |
JPS57200921U (en) * | 1981-06-17 | 1982-12-21 | ||
JPS58196073A (en) * | 1982-05-12 | 1983-11-15 | Nec Corp | Electrostrictive effect element |
JPS5930515U (en) * | 1982-08-23 | 1984-02-25 | いすゞ自動車株式会社 | Exhaust manifold reinforcement structure |
JPS59135681U (en) * | 1983-03-02 | 1984-09-10 | 株式会社村田製作所 | Contact structure of electronic components with case |
JPS6027217A (en) * | 1983-07-22 | 1985-02-12 | Toyo Commun Equip Co Ltd | Composite type piezo-electric band pass filter |
JPS617124U (en) * | 1984-06-20 | 1986-01-17 | 日本電波工業株式会社 | Leadless piezoelectric vibrator |
JPS62201964U (en) * | 1986-06-13 | 1987-12-23 | ||
JPS6481404A (en) * | 1987-09-22 | 1989-03-27 | Tdk Corp | Piezoelectric compound component and its manufacture |
JPS6484904A (en) * | 1987-09-26 | 1989-03-30 | Nec Corp | Surface acoustic wave device |
JPH01115323U (en) * | 1988-01-29 | 1989-08-03 | ||
JPH01156627U (en) * | 1988-04-19 | 1989-10-27 | ||
JPH0235522U (en) * | 1988-08-29 | 1990-03-07 | ||
JPH02170609A (en) * | 1988-12-22 | 1990-07-02 | Soshin Denki Kk | Multilayer printed filter for electric circuit and its manufacture |
JPH02186814A (en) * | 1989-01-13 | 1990-07-23 | Nippon Dempa Kogyo Co Ltd | Piezoelectric oscillator |
JPH02226906A (en) * | 1989-02-28 | 1990-09-10 | Nippon Dempa Kogyo Co Ltd | Surface package type piezoelectric vibrator |
JPH02147928U (en) * | 1989-05-18 | 1990-12-17 |
-
1990
- 1990-11-27 JP JP1990125468U patent/JP2583990Y2/en not_active Expired - Fee Related
Patent Citations (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51161081U (en) * | 1975-06-16 | 1976-12-22 | ||
JPS5248991A (en) * | 1975-10-17 | 1977-04-19 | Citizen Watch Co Ltd | Practical structure of quartz oscillator |
JPS5338937U (en) * | 1976-09-09 | 1978-04-05 | ||
JPS5389131U (en) * | 1976-12-21 | 1978-07-21 | ||
JPS5389644A (en) * | 1977-01-14 | 1978-08-07 | Motorola Inc | Multipolar resonator |
JPS5757019A (en) * | 1980-09-24 | 1982-04-06 | Fujitsu Ltd | Surface acoustic wave filter |
JPS5757018A (en) * | 1980-09-24 | 1982-04-06 | Fujitsu Ltd | Surface acoustic wave filter |
JPS57200921U (en) * | 1981-06-17 | 1982-12-21 | ||
JPS58196073A (en) * | 1982-05-12 | 1983-11-15 | Nec Corp | Electrostrictive effect element |
JPS5930515U (en) * | 1982-08-23 | 1984-02-25 | いすゞ自動車株式会社 | Exhaust manifold reinforcement structure |
JPS59135681U (en) * | 1983-03-02 | 1984-09-10 | 株式会社村田製作所 | Contact structure of electronic components with case |
JPS6027217A (en) * | 1983-07-22 | 1985-02-12 | Toyo Commun Equip Co Ltd | Composite type piezo-electric band pass filter |
JPS617124U (en) * | 1984-06-20 | 1986-01-17 | 日本電波工業株式会社 | Leadless piezoelectric vibrator |
JPS62201964U (en) * | 1986-06-13 | 1987-12-23 | ||
JPS6481404A (en) * | 1987-09-22 | 1989-03-27 | Tdk Corp | Piezoelectric compound component and its manufacture |
JPS6484904A (en) * | 1987-09-26 | 1989-03-30 | Nec Corp | Surface acoustic wave device |
JPH01115323U (en) * | 1988-01-29 | 1989-08-03 | ||
JPH01156627U (en) * | 1988-04-19 | 1989-10-27 | ||
JPH0235522U (en) * | 1988-08-29 | 1990-03-07 | ||
JPH02170609A (en) * | 1988-12-22 | 1990-07-02 | Soshin Denki Kk | Multilayer printed filter for electric circuit and its manufacture |
JPH02186814A (en) * | 1989-01-13 | 1990-07-23 | Nippon Dempa Kogyo Co Ltd | Piezoelectric oscillator |
JPH02226906A (en) * | 1989-02-28 | 1990-09-10 | Nippon Dempa Kogyo Co Ltd | Surface package type piezoelectric vibrator |
JPH02147928U (en) * | 1989-05-18 | 1990-12-17 |
Also Published As
Publication number | Publication date |
---|---|
JP2583990Y2 (en) | 1998-10-27 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |