JPH0637575A - Piezoelectric component - Google Patents
Piezoelectric componentInfo
- Publication number
- JPH0637575A JPH0637575A JP4211991A JP21199192A JPH0637575A JP H0637575 A JPH0637575 A JP H0637575A JP 4211991 A JP4211991 A JP 4211991A JP 21199192 A JP21199192 A JP 21199192A JP H0637575 A JPH0637575 A JP H0637575A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- piezoelectric substrate
- piezoelectric
- main surface
- vibrating electrode
- 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
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は圧電部品に関し、特に
たとえば発振子などとして用いられる、圧電部品に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piezoelectric component, and more particularly to a piezoelectric component used as, for example, an oscillator.
【０００２】[0002]
【従来の技術】図３は従来の圧電部品の一例を示す斜視
図であり、図４は図３に示す圧電部品に用いられる圧電
素子を示す斜視図である。圧電部品１は圧電素子２を含
む。圧電素子２は、短冊状の圧電体基板３を含む。圧電
体基板３の一方主面には、その長手方向における中央に
第１の振動電極４ａが形成され、その長手方向における
一端から第１の振動電極４ａにわたって第１の接続電極
５ａが形成される。同様に、圧電体基板３の他方主面に
は、その長手方向における中央に第２の振動電極４ｂが
形成され、その長手方向における他端から第２の振動電
極４ｂにわたって第２の接続電極５ｂが形成される。こ
の場合、第１の振動電極４ａおよび第２の振動電極４ｂ
は、互いに対向するように形成される。また、第１の振
動電極４ａと第１の接続電極５ａとの間には、レジスト
インク層６ａが形成され、第２の振動電極４ｂと第２の
接続電極５ｂとの間にも、レジストインク層６ｂが形成
される。これらのレジストインク層６ａおよび６ｂは、
第１の接続電極５ａおよび第２の接続電極５ｂに第１の
端子７ａおよび７ｂをそれぞれはんだ付けする際に、第
１の振動電極４ａおよび第２の振動電極４ｂにはんだが
流れないようにするためのものである。また、圧電素子
２の長手方向における一端部は第１の端子７ａのカップ
状の接続部８ａで囲まれ、その接続部８ａが第１の接続
電極５ａにはんだ付けされる。同様に、圧電素子２の長
手方向における他端部は第２の端子７ｂのカップ状の接
続部８ｂで囲まれ、その接続部８ｂが第２の接続電極５
ｂにはんだ付けされる。2. Description of the Related Art FIG. 3 is a perspective view showing an example of a conventional piezoelectric component, and FIG. 4 is a perspective view showing a piezoelectric element used in the piezoelectric component shown in FIG. The piezoelectric component 1 includes a piezoelectric element 2. The piezoelectric element 2 includes a strip-shaped piezoelectric substrate 3. On one main surface of the piezoelectric substrate 3, a first vibrating electrode 4a is formed in the center in the longitudinal direction, and a first connecting electrode 5a is formed from one end in the longitudinal direction to the first vibrating electrode 4a. . Similarly, the second vibrating electrode 4b is formed on the other main surface of the piezoelectric substrate 3 at the center in the longitudinal direction, and the second connecting electrode 5b extends from the other end in the longitudinal direction to the second vibrating electrode 4b. Is formed. In this case, the first vibrating electrode 4a and the second vibrating electrode 4b
Are formed to face each other. A resist ink layer 6a is formed between the first vibrating electrode 4a and the first connecting electrode 5a, and the resist ink layer 6a is formed between the second vibrating electrode 4b and the second connecting electrode 5b. Layer 6b is formed. These resist ink layers 6a and 6b are
Prevent solder from flowing to the first vibrating electrode 4a and the second vibrating electrode 4b when soldering the first terminals 7a and 7b to the first connecting electrode 5a and the second connecting electrode 5b, respectively. It is for. Further, one end portion in the longitudinal direction of the piezoelectric element 2 is surrounded by the cup-shaped connecting portion 8a of the first terminal 7a, and the connecting portion 8a is soldered to the first connecting electrode 5a. Similarly, the other end of the piezoelectric element 2 in the longitudinal direction is surrounded by the cup-shaped connecting portion 8b of the second terminal 7b, and the connecting portion 8b is connected to the second connecting electrode 5b.
Soldered to b.
【０００３】[0003]
【発明が解決しようとする課題】図３に示す圧電部品１
では、第１の振動電極４ａおよび第２の振動電極４ｂに
はんだが流れないようにするために、第１の振動電極４
ａおよび第２の振動電極４ｂと第１の接続電極５ａおよ
び第２の接続電極５ｂとの間にレジストインク層６ａお
よび６ｂをそれぞれ形成する必要があり、製造工程数が
かかる。Piezoelectric component 1 shown in FIG.
Then, in order to prevent the solder from flowing to the first vibrating electrode 4a and the second vibrating electrode 4b,
It is necessary to form resist ink layers 6a and 6b between a and the second vibrating electrode 4b and the first connecting electrode 5a and the second connecting electrode 5b, respectively, which requires a large number of manufacturing steps.
【０００４】それゆえに、この発明の主たる目的は、製
造工程数を減らすことができる、圧電部品を提供するこ
とである。Therefore, a main object of the present invention is to provide a piezoelectric component which can reduce the number of manufacturing steps.
【０００５】[0005]
【課題を解決するための手段】この発明は、圧電体基板
と、圧電体基板の一方主面に形成される第１の振動電極
と、第１の振動電極から圧電体基板の他方主面にわたっ
て形成される第１の接続電極と、圧電体基板の他方主面
に形成され、第１の振動電極と対向する第２の振動電極
と、第２の振動電極から圧電体基板の一方主面にわたっ
て形成される第２の接続電極と、圧電体基板の他方主面
側で第１の接続電極にはんだ付けされる第１の端子と、
圧電体基板の一方主面側で第２の接続電極にはんだ付け
される第２の端子とを含む、圧電部品である。According to the present invention, there is provided a piezoelectric substrate, a first vibrating electrode formed on one principal surface of the piezoelectric substrate, and the first vibrating electrode extending from the other principal surface of the piezoelectric substrate. The first connecting electrode to be formed, the second vibrating electrode formed on the other main surface of the piezoelectric substrate and facing the first vibrating electrode, and the second vibrating electrode from the one main surface of the piezoelectric substrate. A second connection electrode formed, and a first terminal soldered to the first connection electrode on the other main surface side of the piezoelectric substrate,
A piezoelectric component including a second terminal soldered to a second connection electrode on one main surface side of the piezoelectric substrate.
【０００６】[0006]
【作用】第１の振動電極は、圧電体基板の一方主面に形
成される。また、第１の接続電極は、第１の接続電極か
ら圧電体基板の他方主面にわたって形成される。そし
て、第１の端子は、圧電体基板の他方主面側で第１の接
続電極にはんだ付けされる。そのため、第１の端子を第
１の接続電極に接続するためのはんだが、第１の振動電
極に流れない。同様に、第２の端子を第２の接続電極に
はんだ付けするためのはんだも、第２の振動電極に流れ
ない。The first vibrating electrode is formed on the one main surface of the piezoelectric substrate. Further, the first connection electrode is formed from the first connection electrode to the other main surface of the piezoelectric substrate. Then, the first terminal is soldered to the first connection electrode on the other main surface side of the piezoelectric substrate. Therefore, the solder for connecting the first terminal to the first connecting electrode does not flow to the first vibrating electrode. Similarly, solder for soldering the second terminal to the second connecting electrode does not flow to the second vibrating electrode.
【０００７】[0007]
【発明の効果】この発明によれば、従来例のようなレジ
ストインク層が不要となり、製造工程数を減らすことが
できる圧電部品が得られる。According to the present invention, it is possible to obtain a piezoelectric component in which the resist ink layer as in the conventional example is unnecessary and the number of manufacturing steps can be reduced.
【０００８】この発明の上述の目的，その他の目的，特
徴および利点は、図面を参照して行う以下の実施例の詳
細な説明から一層明らかとなろう。The above-mentioned objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of the embodiments with reference to the drawings.
【０００９】[0009]
【実施例】図１はこの発明の一実施例を示す斜視図であ
り、図２は図１に示す圧電部品に用いられる圧電素子を
示す斜視図である。圧電部品１０は、圧電素子１２を含
み、圧電素子１２はたとえば短冊状の圧電体基板１４を
含む。1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a perspective view showing a piezoelectric element used in the piezoelectric component shown in FIG. The piezoelectric component 10 includes a piezoelectric element 12, and the piezoelectric element 12 includes, for example, a strip-shaped piezoelectric substrate 14.
【００１０】圧電体基板１４の一方主面の長手方向にお
ける中央には、第１の振動電極１６ａが形成される。さ
らに、圧電体基板１６の他方主面の長手方向における中
央には、第２の振動電極１６ｂが形成される。この場
合、第１の振動電極１６ａおよび第２の振動電極１６ｂ
は、互いに対向するように形成される。A first vibrating electrode 16a is formed at the center of one main surface of the piezoelectric substrate 14 in the longitudinal direction. Further, a second vibrating electrode 16b is formed in the center of the other main surface of the piezoelectric substrate 16 in the longitudinal direction. In this case, the first vibrating electrode 16a and the second vibrating electrode 16b
Are formed to face each other.
【００１１】また、第１の振動電極１６ａから圧電体基
板１４の他方主面の長手方向における一端にわたって、
第１の接続電極１８ａが形成される。この場合、第１の
接続電極１８ａは、圧電体基板１４の長手方向における
一端面にも形成される。Further, from the first vibrating electrode 16a to one end in the longitudinal direction of the other main surface of the piezoelectric substrate 14,
The first connection electrode 18a is formed. In this case, the first connection electrode 18a is also formed on one end surface of the piezoelectric substrate 14 in the longitudinal direction.
【００１２】さらに、第２の振動電極１６ｂから圧電体
基板１４の一方主面の長手方向における他端にわたっ
て、第２の接続電極１８ｂが形成される。この場合、第
２の接続電極１８ｂは、圧電体基板１４の長手方向にお
ける他端面にも形成される。Further, a second connecting electrode 18b is formed from the second vibrating electrode 16b to the other end of the one main surface of the piezoelectric substrate 14 in the longitudinal direction. In this case, the second connection electrode 18b is also formed on the other end surface of the piezoelectric substrate 14 in the longitudinal direction.
【００１３】この圧電素子１２の長手方向における一端
部は、第１の端子２０ａのカップ状の接続部２２ａで囲
まれ、その接続部２２ａが圧電体基板１４の他方主面側
で第１の接続電極１８ａにはんだ付けされる。この場
合、圧電体基板１４の他方主面側で第１の端子２０ａが
第１の接続電極１８ａにはんだ付けされるので、はんだ
付けされる部分から第１の振動電極１６ａまでの距離が
長くなり、はんだが圧電体基板１４の一方主面側の第１
の振動電極１６ａに流れない。そのため、図３に示す従
来例のようなレジストインク層が不要となる。One end portion of the piezoelectric element 12 in the longitudinal direction is surrounded by a cup-shaped connecting portion 22a of the first terminal 20a, and the connecting portion 22a makes a first connection on the other main surface side of the piezoelectric substrate 14. It is soldered to the electrode 18a. In this case, since the first terminal 20a is soldered to the first connecting electrode 18a on the other main surface side of the piezoelectric substrate 14, the distance from the soldered portion to the first vibrating electrode 16a becomes long. , The solder is the first main surface side of the piezoelectric substrate 14
Does not flow to the vibrating electrode 16a. Therefore, the resist ink layer as in the conventional example shown in FIG. 3 becomes unnecessary.
【００１４】さらに、圧電素子１２の長手方向における
他端部は、第２の端子２０ｂのカップ状の接続部２２ｂ
で囲まれ、その接続部２２ｂが圧電体基板１４の一方主
面側で第２の接続電極１８ｂにはんだ付けされる。この
場合も、はんだが圧電体基板１４の他方主面側の第２の
振動電極１６ｂに流れなく、上述のレジストインク層が
不要となる。Further, the other end portion in the longitudinal direction of the piezoelectric element 12 has a cup-shaped connecting portion 22b of the second terminal 20b.
And the connection portion 22b is soldered to the second connection electrode 18b on the one main surface side of the piezoelectric substrate 14. Also in this case, the solder does not flow to the second vibrating electrode 16b on the other main surface side of the piezoelectric substrate 14, and the above-described resist ink layer becomes unnecessary.
【００１５】また、この圧電部品１０では、圧電体基板
１４の長手方向における一端側の２箇所の部分で第１の
端子２０ａの接続部２２ａが第１の接続電極１８ａに接
触し、圧電体基板１４の長手方向における他端側の２箇
所の部分で第２の端子２０ｂの接続部２２ｂが第２の接
続電極１８ｂに接触するので、接続信頼性がよくなる。Further, in this piezoelectric component 10, the connecting portion 22a of the first terminal 20a contacts the first connecting electrode 18a at two portions on one end side in the longitudinal direction of the piezoelectric substrate 14, so that the piezoelectric substrate is Since the connection portion 22b of the second terminal 20b contacts the second connection electrode 18b at two portions on the other end side in the longitudinal direction of 14, the connection reliability is improved.
【００１６】なお、上述の実施例では、各接続電極が圧
電体基板の長手方向における端面を経てその一方主面か
ら他方主面にわたって形成されているが、各接続電極
は、圧電体基板の幅方向における端面を経てその一方主
面から他方主面にわたって形成されてもよい。In the above embodiment, each connection electrode is formed from one main surface to the other main surface of the piezoelectric substrate through the end face in the longitudinal direction of the piezoelectric substrate. It may be formed from the one main surface to the other main surface through the end surface in the direction.
【００１７】また、圧電体基板や各電極は、短冊状や矩
形状に限らず他の形状に形成されてもよい。その場合、
その形状に応じた端子を用いればよい。Further, the piezoelectric substrate and each electrode are not limited to the strip shape or the rectangular shape, and may be formed in other shapes. In that case,
A terminal corresponding to the shape may be used.
【図１】この発明の一実施例を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of the present invention.
【図２】図１に示す圧電部品に用いられる圧電素子を示
す斜視図である。FIG. 2 is a perspective view showing a piezoelectric element used in the piezoelectric component shown in FIG.
【図３】従来の圧電部品の一例を示す斜視図である。FIG. 3 is a perspective view showing an example of a conventional piezoelectric component.
【図４】図３に示す圧電部品に用いられる圧電素子を示
す斜視図である。FIG. 4 is a perspective view showing a piezoelectric element used in the piezoelectric component shown in FIG.
１０ 圧電部品 １２ 圧電素子 １４ 圧電体基板 １６ａ，１６ｂ 振動電極 １８ａ，１８ｂ 接続電極 ２０ａ，２０ｂ 端子 ２２ａ，２２ｂ 接続部 DESCRIPTION OF SYMBOLS 10 Piezoelectric component 12 Piezoelectric element 14 Piezoelectric substrate 16a, 16b Vibrating electrode 18a, 18b Connection electrode 20a, 20b Terminal 22a, 22b Connection part
Claims (1)
極、 前記第１の振動電極から前記圧電体基板の他方主面にわ
たって形成される第１の接続電極、 前記圧電体基板の他方主面に形成され、前記第１の振動
電極と対向する第２の振動電極、 前記第２の振動電極から前記圧電体基板の一方主面にわ
たって形成される第２の接続電極、 前記圧電体基板の他方主面側で前記第１の接続電極には
んだ付けされる第１の端子、および前記圧電体基板の一
方主面側で前記第２の接続電極にはんだ付けされる第２
の端子を含む、圧電部品。1. A piezoelectric substrate, a first vibrating electrode formed on one main surface of the piezoelectric substrate, and a first connection formed from the first vibrating electrode to the other main surface of the piezoelectric substrate. An electrode, a second vibrating electrode that is formed on the other main surface of the piezoelectric substrate and faces the first vibrating electrode, and a second vibrating electrode that extends from the second vibrating electrode to one main surface of the piezoelectric substrate. Connection electrode, a first terminal soldered to the first connection electrode on the other main surface side of the piezoelectric substrate, and soldered to the second connection electrode on one main surface side of the piezoelectric substrate. Done second
Piezoelectric parts, including the terminals of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4211991A JPH0637575A (en) | 1992-07-15 | 1992-07-15 | Piezoelectric component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4211991A JPH0637575A (en) | 1992-07-15 | 1992-07-15 | Piezoelectric component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0637575A true JPH0637575A (en) | 1994-02-10 |
Family
ID=16615091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4211991A Pending JPH0637575A (en) | 1992-07-15 | 1992-07-15 | Piezoelectric component |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0637575A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988007728A1 (en) * | 1987-03-23 | 1988-10-06 | Eastman Kodak Company | Focusing for optical print heads |
| US5094970A (en) * | 1988-11-07 | 1992-03-10 | Mitsubishi Denki Kabushiki Kaisha | Method of making a light emitting diode array |
-
1992
- 1992-07-15 JP JP4211991A patent/JPH0637575A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988007728A1 (en) * | 1987-03-23 | 1988-10-06 | Eastman Kodak Company | Focusing for optical print heads |
| US4893926A (en) * | 1987-03-23 | 1990-01-16 | Eastman Kodak Company | Focusing for optical print heads |
| US5094970A (en) * | 1988-11-07 | 1992-03-10 | Mitsubishi Denki Kabushiki Kaisha | Method of making a light emitting diode array |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |