JPS62241414A - Piezoelectric vibrator - Google Patents
Piezoelectric vibratorInfo
- Publication number
- JPS62241414A JPS62241414A JP8536386A JP8536386A JPS62241414A JP S62241414 A JPS62241414 A JP S62241414A JP 8536386 A JP8536386 A JP 8536386A JP 8536386 A JP8536386 A JP 8536386A JP S62241414 A JPS62241414 A JP S62241414A
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- electrodes
- supporters
- vibrating piece
- reduce
- 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 abstract description 19
- 239000000919 ceramic Substances 0.000 abstract description 9
- 239000011521 glass Substances 0.000 abstract description 8
- 239000000853 adhesive Substances 0.000 abstract description 7
- 230000001070 adhesive effect Effects 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 6
- 239000004020 conductor Substances 0.000 abstract description 2
- 239000012212 insulator Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 10
- 239000011810 insulating material Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、水晶振動子、セラミック振動子に代表される
圧電振動子に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to piezoelectric vibrators, typified by crystal vibrators and ceramic vibrators.
従来の技術
従来の圧電振動子、特に水晶振動子などでは、第３図に
示すように発振周波数、抵抗などの経時変化に対する性
能を満足させるため、冷間圧接や抵抗溶接という方法を
用いて、振動片１６を金属パッケージに気密封止してい
た。金属パッケージのベース部１１はリード端子１４を
取りだすためガラス１２によるガラスハーメチックシー
ルされており、リード端子１４に導電性接着剤１５を用
いて電極１７を設けた振動片１６を取付けて構成されこ
れに金属キャップ１３を被せて気密封止されていた。こ
の構成は高価でありコスト高の原因になっている。Conventional Technology Conventional piezoelectric resonators, especially crystal resonators, etc., use methods such as cold pressure welding and resistance welding to satisfy performance against changes in oscillation frequency, resistance, etc. over time, as shown in Figure 3. The vibrating piece 16 was hermetically sealed in a metal package. The base portion 11 of the metal package is hermetically sealed with glass 12 in order to take out the lead terminals 14, and a vibrating piece 16 having an electrode 17 is attached to the lead terminal 14 using a conductive adhesive 15. It was covered with a metal cap 13 and hermetically sealed. This configuration is expensive and causes high costs.
又近年、抵抗、コンデンサなどの電子部品ではチップ化
され面実装がさかんに行われており、圧電振動子におい
てもチップ化の波が押し寄せている。しかし前期金属パ
ッケージではチップ化がむづかしく、セラミックやガラ
スのパッケージを使用した製品も現れ始めている。すな
わち、第４図に示すようにセラミックキャップ１８．１
９をガラスペースト２０．２１により結合封止し、この
ガラスペースト２１部からリード端子２６を引出し、こ
のセラミックキャップ１８．１９の内のリード端子２５
には両面に電極２４を形成した振動片２３が導電性接着
剤２２が接続結合されている。In addition, in recent years, electronic components such as resistors and capacitors have been made into chips and surface mounting has been actively carried out, and piezoelectric vibrators are also being made into chips. However, earlier metal packages were difficult to convert into chips, and products using ceramic or glass packages are beginning to appear. That is, as shown in FIG.
9 are bonded and sealed with glass paste 20, 21, lead terminal 26 is drawn out from this glass paste 21, and lead terminal 25 in this ceramic cap 18, 19 is sealed.
A vibrating piece 23 having electrodes 24 formed on both sides is connected and connected with a conductive adhesive 22 .
（特公昭５ｇ−５４７１６号など）
発明が解決しようとする問題点
このように、従来の圧電振動子では金属パック−ジを用
いているためチップ化がむづかしく、ハーメチックシー
ルのためにコスト高になっていた。(Japanese Patent Publication No. 5g-54716, etc.) Problems to be Solved by the Invention As described above, conventional piezoelectric vibrators use a metal package, which makes it difficult to make them into chips, and the cost is high due to hermetic sealing. It had become.
又、セラミｙりやガラスのパッケージを用いた製品でも
、パッケージ自体が高価なためかなりコスト高になって
いる。又、気密性を確保するため、シール部の肉厚が厚
くなり振動片を小形化しても全体としては大きくなるた
め小形化のメリットがなくなっていた。Furthermore, even products using ceramic or glass packages are quite expensive because the package itself is expensive. Furthermore, in order to ensure airtightness, the thickness of the sealing portion is increased, and even if the vibrating element is made smaller, the overall size becomes larger, so that there is no advantage in downsizing.
本発明は前記問題点に注目し、簡易な構成で小形で安価
な圧電振動子を提供することを目的としている。The present invention has focused on the above-mentioned problems, and aims to provide a small and inexpensive piezoelectric vibrator with a simple configuration.
問題点を解決するだめの手段
本発明は上記問題点を解決するため、基板の表裏に、小
さな孔を介した電極を配し、一方の面の電極に一対のサ
ポータを設け、このサポータにより振動片を保持し上ぶ
たにより気密封止する構成としたものである。Means to Solve the Problems In order to solve the above problems, the present invention arranges electrodes through small holes on the front and back sides of the substrate, and provides a pair of supporters on the electrodes on one side, and the supports prevent vibrations. The structure is such that the pieces are held and hermetically sealed by the upper lid.
作用
本発明は上記構成により、振動片を保持する基板面より
直接電極を引き出すことが必要なく、上ぶたの材質には
セラミックなどの絶縁材料以外に従来の金属キャップが
使用できるようになるものである。Effect of the Invention With the above-described configuration, the present invention eliminates the need to draw out the electrodes directly from the substrate surface that holds the vibrating element, and allows the use of conventional metal caps in addition to insulating materials such as ceramics for the material of the upper lid. be.
実施例
第１図は本発明の圧電振動子の一実施例を示す部分断面
図である。第１図において、１は絶縁材よりなる基板で
あり電極の引き出し部となる小さな孔１１Ｌを設けてお
り、この基板１の両面に電極３．４を印刷することＫよ
り前記の孔１１Ｌが完全に電極材料により満たされて電
極３．４の両面は導通している。６は振動片であり導電
性接着剤７で導電材からなるサポータ５に固定され、さ
らにサポータ５は基板１の電極３，４に同じく導電接着
剤８により固定している。２は金属キャップからなる上
ぶたでありガラスペースト９により基板１上に結合され
前記振動片６などを気密封止している。Embodiment FIG. 1 is a partial sectional view showing an embodiment of the piezoelectric vibrator of the present invention. In Fig. 1, reference numeral 1 denotes a substrate made of an insulating material, and is provided with a small hole 11L that serves as an electrode extraction part.By printing electrodes 3.4 on both sides of this substrate 1, the hole 11L is completely filled. The electrodes 3.4 are filled with electrode material so that both sides of the electrodes 3.4 are electrically conductive. A vibrating piece 6 is fixed to a supporter 5 made of a conductive material with a conductive adhesive 7, and the supporter 5 is also fixed to the electrodes 3 and 4 of the substrate 1 with a conductive adhesive 8. Reference numeral 2 denotes an upper lid made of a metal cap, which is bonded onto the substrate 1 with a glass paste 9 to hermetically seal the vibrating piece 6 and the like.
以上のように構成された本実施例の圧電振動子では、振
動片６を保持する基板１の上面から直接電極を引き出さ
ず、基板１の小さな孔１＆を介して裏面から電気的に導
通できるとともに気密性も保たれる。したがって振動片
６を気密封止する上ぶた２は高価なセラミックなど絶縁
材料の成形品を使用しなくてもよ〈従来の金属キャップ
を使用できる。このように金属パッケージを使用するこ
とでコストダウンできるとともにセラミックなどに比較
して肉厚を薄くできるため全体としてより小形化が可能
である。又、基板１の材料には熱電導の比較的良いセラ
ミックを用いているがシート状であり電極３．４は印刷
して焼成するだけでよい。In the piezoelectric vibrator of this embodiment configured as described above, the electrodes are not drawn out directly from the top surface of the substrate 1 that holds the vibrating piece 6, and electrical conduction can be made from the back surface through the small hole 1 & of the substrate 1. Airtightness is also maintained. Therefore, the upper lid 2 for hermetically sealing the vibrating element 6 does not need to be a molded product made of an expensive ceramic or other insulating material (a conventional metal cap can be used). By using a metal package in this way, the cost can be reduced and the wall thickness can be made thinner than that of a ceramic package, so the overall size can be made smaller. Furthermore, although the material of the substrate 1 is ceramic, which has relatively good thermal conductivity, it is in the form of a sheet, and the electrodes 3.4 only need to be printed and fired.
発明の効果
以上の説明から明らかなように、本発明は電極の引き出
しを基板の小さな孔を介して基板の裏側で行うため、気
密封止用の上ぶたに金属キャップを使用できるためより
小形で安価な圧電振動子を提供することができる。又リ
ード端子をなくすことができチップ形となるため面実装
にも対応することができるようになる。Effects of the Invention As is clear from the above explanation, the present invention allows the electrode to be pulled out from the back side of the substrate through a small hole in the substrate, so a metal cap can be used as the top lid for airtight sealing, making the device more compact. An inexpensive piezoelectric vibrator can be provided. Furthermore, since lead terminals can be eliminated and the device is in the form of a chip, it can also be used for surface mounting.
第１図は本発明の一実施例の圧電振動子の部分断面正面
図、第２図は同本発明の分解斜視図、第３図、第４図は
従来の圧電振動子の部分断面図である。
１・・・・・・基板、２・・・・・・上ぶた、３．４・
・・・・・電極、６・・・・・・サポータ、ｄ・・・・
・・振動片。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名／−
ｍ−基板
２−−一上ぶ゛た
３４−・電極
５−一−サポータ
６一−−鵜片
７８−一一導電挫接肴剤
９−−−ガ°ラスペースト
第２図FIG. 1 is a partial sectional front view of a piezoelectric vibrator according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the same invention, and FIGS. 3 and 4 are partial sectional views of a conventional piezoelectric vibrator. be. 1... Board, 2... Top lid, 3.4.
...Electrode, 6...Supporter, d...
...Vibration piece. Name of agent: Patent attorney Toshio Nakao and 1 other person/-
M-Substrate 2--Top bracket 34--Electrode 5--Supporter 6--Snap 78--11 Conductive crush adhesive 9--Glass paste Fig. 2
Claims (1)
の面の電極に一対のサポータを設け、このサポータによ
り振動片を保持し、上ぶたにより気密封止したことを特
徴とする圧電振動子。A piezoelectric vibration device characterized by having electrodes arranged through small holes on the front and back sides of a substrate, a pair of supporters provided on the electrodes on one side, a vibrating piece held by the supporters, and hermetically sealed by an upper lid. Child.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8536386A JPS62241414A (en) | 1986-04-14 | 1986-04-14 | Piezoelectric vibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8536386A JPS62241414A (en) | 1986-04-14 | 1986-04-14 | Piezoelectric vibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62241414A true JPS62241414A (en) | 1987-10-22 |
Family
ID=13856628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8536386A Pending JPS62241414A (en) | 1986-04-14 | 1986-04-14 | Piezoelectric vibrator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62241414A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0390125U (en) * | 1989-12-26 | 1991-09-13 | ||
| JPH0471028U (en) * | 1990-10-31 | 1992-06-23 | ||
| WO1992019043A1 (en) * | 1991-04-22 | 1992-10-29 | Motorola, Inc. | Surface mountable piezoelectric device with in situ finish plate mask |
| JP2009253409A (en) * | 2008-04-02 | 2009-10-29 | Nippon Dempa Kogyo Co Ltd | Crystal oscillator |
-
1986
- 1986-04-14 JP JP8536386A patent/JPS62241414A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0390125U (en) * | 1989-12-26 | 1991-09-13 | ||
| JPH0471028U (en) * | 1990-10-31 | 1992-06-23 | ||
| WO1992019043A1 (en) * | 1991-04-22 | 1992-10-29 | Motorola, Inc. | Surface mountable piezoelectric device with in situ finish plate mask |
| US5281935A (en) * | 1991-04-22 | 1994-01-25 | Motorola, Inc. | Surface mountable piezoelectric device using a metallic support structure with in situ finish plate mask |
| JP2009253409A (en) * | 2008-04-02 | 2009-10-29 | Nippon Dempa Kogyo Co Ltd | Crystal oscillator |
| JP4555359B2 (en) * | 2008-04-02 | 2010-09-29 | 日本電波工業株式会社 | Crystal oscillator |
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