JPS5814616A - Piezoelectric oscillator and its production - Google Patents
Piezoelectric oscillator and its productionInfo
- Publication number
- JPS5814616A JPS5814616A JP11259281A JP11259281A JPS5814616A JP S5814616 A JPS5814616 A JP S5814616A JP 11259281 A JP11259281 A JP 11259281A JP 11259281 A JP11259281 A JP 11259281A JP S5814616 A JPS5814616 A JP S5814616A
- Authority
- JP
- Japan
- Prior art keywords
- holding
- holding member
- cover
- piezoelectric
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders; Supports
- H03H9/0504—Holders; Supports for bulk acoustic wave devices
- H03H9/0528—Holders; Supports for bulk acoustic wave devices consisting of clips
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders; Supports
- H03H9/10—Mounting in enclosures
- H03H9/1007—Mounting in enclosures for bulk acoustic wave [BAW] devices
- H03H9/1014—Mounting in enclosures for bulk acoustic wave [BAW] devices the enclosure being defined by a frame built on a substrate and a cap, the frame having no mechanical contact with the BAW device
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
Description
【発明の詳細な説明】 本発明は圧！振動子とその製法に関するものである。[Detailed description of the invention] This invention is pressure! It concerns vibrators and their manufacturing methods.
従卑より水晶片やセラミック素子などの圧電振動素子（
圧電素子）の電極部分などエネルギーが集中する部分の
みに空隙を設けて、その他はすべて樹脂モールドによっ
てモールドして封持した圧電振動子がある。この製法は
リード端子を接続した圧電素子の電極部に１あらかじめ
ワックスやパラフィンを設け、その後田電素子を樹脂モ
ールド材にてモールドするも、ので、このモールド時に
ワックスなどは溶融し、そこは空隙部となゐものであっ
た。Piezoelectric vibrating elements such as crystal pieces and ceramic elements (
There is a piezoelectric vibrator in which a gap is provided only in the part where energy is concentrated, such as the electrode part of the piezoelectric element, and the rest is molded and sealed with a resin mold. In this manufacturing method, wax or paraffin is applied in advance to the electrode part of the piezoelectric element connected to the lead terminal, and then the piezoelectric element is molded with a resin molding material. It was something different.
しかしこの従来技術では、モールド材が圧電素子たとえ
ば水晶片に接触しており、このモールド材の膨張温度係
数が水晶片よりはるかに大きいので、モールド材の温度
を化による応力の影響を受け、水晶片の温ｊ［特性を悪
化させる欠点があった。However, in this conventional technology, the molding material is in contact with the piezoelectric element, such as a crystal piece, and the expansion temperature coefficient of this molding material is much larger than that of the crystal piece. There was a drawback that the temperature of the piece deteriorated.
また圧電振動子は゛そのリード端子をプリント基板の所
定位置に植設するものである光め、装置全体として薄形
化の幣害ともなっていた。In addition, the piezoelectric vibrator has its lead terminals implanted in predetermined positions on a printed circuit board, which has the disadvantage of making the device as a whole thinner.
そこで本発明は従来技術の欠点を除去したものであって
、本発明の実施例について図面を参照して説明する。Therefore, the present invention eliminates the drawbacks of the prior art, and embodiments of the present invention will be described with reference to the drawings.
第１．２図［３Ｆいてプリント基板のような基板Ｉ Ｋ
＃′ｉ、あらかじめ収納孔１ａが穿設しである。Figure 1.2 [3F board IK like printed circuit board
#'i, the storage hole 1a is pre-drilled.
ところで圧電素子たとえばベベリング形の水晶片２はそ
の両側より保持ばね３，３にて挾持されている。保持ば
ね３の具体的形状は、第３図示のように長板状のもので
あ夛、その−側の保持部には保持孔３ａが穿設してあ夛
、この保持孔内に水晶片２の外周を挿着して、２つの保
持ばねにて水晶片を挾持するものであル、中央部が９０
度にねじられてその他側は基板などへの固定部であるリ
ード端子部３ｂとして一体的に形成しである。Incidentally, a piezoelectric element, for example, a beveled type crystal piece 2 is held between its both sides by holding springs 3, 3. The specific shape of the holding spring 3 is a long plate-like one as shown in the third figure, and a holding hole 3a is formed in the holding part on the negative side, and a crystal piece is inserted into this holding hole. The outer circumference of 2 is inserted and the crystal piece is held between two holding springs, and the center part is 90 mm.
The other side is integrally formed as a lead terminal portion 3b which is a portion fixed to a substrate or the like.
つぎに保持ばね３がＴｌＩＣ付けられた水晶片２４−１
、ａ２ミリメートル程変の厚さのポリイミド、テフロン
などの安定な樹脂シートで作られた袋状のカバー４によ
）リード端子部３１１１を露出して空ｌｌｌ６をもって
覆われている。この状態において基板１の収納孔１ａ内
に水晶片２′ｆｔ−基板の面方向に向けた状態で挿置す
る。Next, the crystal blank 24-1 to which the holding spring 3 is attached TlIC
The lead terminal portion 3111 is exposed and covered with an empty space 6 by a bag-shaped cover 4 made of a stable resin sheet such as polyimide or Teflon having a thickness of about 2 mm. In this state, the crystal piece 2' is inserted into the storage hole 1a of the substrate 1 with the crystal piece 2' ft facing in the plane direction of the substrate.
その後基板１の上下方向よ）型（図示せず。）を、収納
孔１ａｔ−中心としてこの基板の上下面に接合させるこ
とによ）セットし、樹脂モールド材５を型内に注入する
。このようにしてカバー４の全面をモールド材５にてモ
ールドするが、この時モールド材が水晶片２に付着する
ととけ、このカバーによって防止されると同時に、水晶
片の全外周には空Ｉ！ｌｊ６が残シ、この水晶片の封持
は完了する。モールド材としては吸湿性がないものを使
用することによって水晶片２のモールドによる周波数変
化、経時変化はさらに完全に防止される。Thereafter, a mold (not shown) is set in the vertical direction of the substrate 1 (by joining the upper and lower surfaces of the substrate with the storage hole 1 at the center), and the resin molding material 5 is injected into the mold. In this way, the entire surface of the cover 4 is molded with the molding material 5, but at this time, if the molding material adheres to the crystal blank 2, it will melt, which is prevented by this cover, and at the same time, the entire outer periphery of the crystal blank is covered with an empty I! The sealing of this crystal piece is completed, with lj6 remaining. By using a non-hygroscopic molding material, frequency changes and aging changes due to the molding of the crystal piece 2 can be more completely prevented.
リード端子部３ｂＩＩ′ｉ基板１の配線に連結される。The lead terminal portion 3bII'i is connected to the wiring of the substrate 1.
以上の構成を有する本発明にかかる圧電振動子け、経時
変化が少なく、薄形に構成されており、また量産性が高
く、安価に生産できるカどの効果を有するものである。The piezoelectric vibrator according to the present invention having the above-mentioned structure has the following advantages: it has a small change over time, has a thin structure, is highly mass-producible, and can be produced at low cost.
第１図は本発明の一実施例を示す一部切欠正断図、第２
図は第１図１４線断面図、第３図は保持バネの平面図で
ある。
１・・・・・・基板 ２・・・・・・圧電素子３・・
・・・・保持ばね ４・・・・・・カバー５・・・・
・・モールド材 ６・・・・・・空隙以 上
第１図
第２図
第３図
ｈFig. 1 is a partially cutaway normal sectional view showing one embodiment of the present invention;
The figures are a sectional view taken along the line 14 in FIG. 1, and FIG. 3 is a plan view of the holding spring. 1...Substrate 2...Piezoelectric element 3...
...Holding spring 4...Cover 5...
...Mold material 6...Gap or more Figure 1 Figure 2 Figure 3 h
Claims (1)
持するとともに他側が固定部である保持部材と、上記圧
電素子および上記保持部材の保持部を空隙をもって覆う
カバーと、このカバーの外周に設けてあり上記圧電素子
および上記保持部材の保持部を密封するとともに上記保
持部材の固定部を突出させているモールド材とを具備す
る圧電振動子。 （２、特許請求の範囲第１項において、保持部材を固定
する基板は収納孔を有し、この収納孔内に圧電素子が位
置していることを特徴とする圧電振動子。 （５） 圧電素子に保持部材の一側の保持部を固着し
、上記保持部材の他側の固定部を露出するように上記圧
電素子シよび上記保持部材の保持部を空隙をもってカバ
ーにて覆い、上記カバーの外周に上記圧１１ＨＩＦ子お
よび上ｒｇｉ持部材の保持部を密封し上記保持部材の固
定部を突出するようにモールド材を設けることを特徴と
する圧電振動子の製法。[Claims] (1) A piezoelectric element, a holding member that holds the piezoelectric element with a holding part on one side and a fixing part on the other side, and a holding part of the piezoelectric element and the holding member with a gap between them. 1. A piezoelectric vibrator comprising: a cover for enclosing the piezoelectric vibrator; and a molding material provided on the outer periphery of the cover to seal the piezoelectric element and the holding portion of the holding member and protrude a fixing portion of the holding member. (2. A piezoelectric vibrator according to claim 1, characterized in that the substrate for fixing the holding member has a storage hole, and a piezoelectric element is located in the storage hole. (5) Piezoelectric A holding part on one side of the holding member is fixed to the element, and the piezoelectric element and the holding part of the holding member are covered with a cover with a gap so that the fixing part on the other side of the holding member is exposed. A method for manufacturing a piezoelectric vibrator, characterized in that a molding material is provided on the outer periphery of the pressure 11 HIF element and the holding part of the upper RGI holding member to seal the holding part and to protrude the fixing part of the holding member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11259281A JPS5814616A (en) | 1981-07-17 | 1981-07-17 | Piezoelectric oscillator and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11259281A JPS5814616A (en) | 1981-07-17 | 1981-07-17 | Piezoelectric oscillator and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5814616A true JPS5814616A (en) | 1983-01-27 |
Family
ID=14590587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11259281A Pending JPS5814616A (en) | 1981-07-17 | 1981-07-17 | Piezoelectric oscillator and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5814616A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4953631A (en) * | 1989-01-24 | 1990-09-04 | Suzuki Jidosha Kogyo Kabushiki Kaisha | Radiator device of motorcycle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS537159B2 (en) * | 1974-01-11 | 1978-03-15 | ||
| JPS5422792A (en) * | 1977-07-21 | 1979-02-20 | Seikosha Kk | Device for holding piezooelectric vibrator and method of producing same |
-
1981
- 1981-07-17 JP JP11259281A patent/JPS5814616A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS537159B2 (en) * | 1974-01-11 | 1978-03-15 | ||
| JPS5422792A (en) * | 1977-07-21 | 1979-02-20 | Seikosha Kk | Device for holding piezooelectric vibrator and method of producing same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4953631A (en) * | 1989-01-24 | 1990-09-04 | Suzuki Jidosha Kogyo Kabushiki Kaisha | Radiator device of motorcycle |
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