JPH02265311A - Crystal resonator - Google Patents
Crystal resonatorInfo
- Publication number
- JPH02265311A JPH02265311A JP8622889A JP8622889A JPH02265311A JP H02265311 A JPH02265311 A JP H02265311A JP 8622889 A JP8622889 A JP 8622889A JP 8622889 A JP8622889 A JP 8622889A JP H02265311 A JPH02265311 A JP H02265311A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- case
- melting point
- low melting
- upper cover
- 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
- 239000013078 crystal Substances 0.000 title claims abstract description 27
- 239000011521 glass Substances 0.000 claims abstract description 37
- 238000002844 melting Methods 0.000 claims abstract description 21
- 230000008018 melting Effects 0.000 claims abstract description 21
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000853 adhesive Substances 0.000 claims abstract description 7
- 230000001070 adhesive effect Effects 0.000 claims abstract description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 5
- 239000005388 borosilicate glass Substances 0.000 claims abstract 2
- 230000005284 excitation Effects 0.000 claims description 5
- 229910052839 forsterite Inorganic materials 0.000 claims description 4
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 13
- 239000000843 powder Substances 0.000 abstract description 4
- 229910052709 silver Inorganic materials 0.000 abstract description 3
- 239000004332 silver Substances 0.000 abstract description 3
- 239000004925 Acrylic resin Substances 0.000 abstract description 2
- 229920000178 Acrylic resin Polymers 0.000 abstract description 2
- 230000002950 deficient Effects 0.000 abstract 2
- 230000007547 defect Effects 0.000 description 4
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- BYFGZMCJNACEKR-UHFFFAOYSA-N aluminium(i) oxide Chemical compound [Al]O[Al] BYFGZMCJNACEKR-UHFFFAOYSA-N 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229940116411 terpineol Drugs 0.000 description 1
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に関する。[Detailed description of the invention] Industrial applications The present invention relates to a crystal resonator.
従来の技術
近年、水晶振動子はＶＴＲ１時計、通信機、電話機など
のほとんどすべての電気製品に用いられている。第１図
に水晶振動子の基本構成、また第２図に水晶板２の周り
の拡大図を示す。１はリード線、２は水晶板、３はケー
ス、４は上蓋、５は導電性接着剤、６は低融点ガラス封
着部分である。BACKGROUND OF THE INVENTION In recent years, crystal oscillators have been used in almost all electrical products such as VTR1 watches, communication devices, and telephones. FIG. 1 shows the basic configuration of the crystal resonator, and FIG. 2 shows an enlarged view of the area around the crystal plate 2. As shown in FIG. 1 is a lead wire, 2 is a crystal plate, 3 is a case, 4 is a top cover, 5 is a conductive adhesive, and 6 is a low melting point glass sealing part.
ここで低融点ガラスは一般に存機溶剤、バインダーとと
もにペーストにして用いられる。また７は水晶板２の表
裏に蒸着された励振用電極、８は保持部を示している。Here, the low melting point glass is generally used in the form of a paste together with a solvent and a binder. Further, 7 indicates excitation electrodes deposited on the front and back surfaces of the crystal plate 2, and 8 indicates a holding portion.
ここで低融点ガラスとしては内部の水晶板２や導電性接
着剤５に悪影響を与えないように、その作業温度が４３
０°Ｃ程度のものが必要とされている。Here, as the low melting point glass, the working temperature is 43℃ so as not to adversely affect the internal crystal plate 2 and conductive adhesive 5.
A temperature of about 0°C is required.
このような低温で作業できるガラスとして従来は鉛系非
晶質ガラスが使用されていた。Lead-based amorphous glass has conventionally been used as a glass that can be operated at such low temperatures.
発明が解決しようとする課題
しかじなが′ら前記鉛系非晶質ガラスは一般に低融点に
なるほどガラスの強度が低下し、熱膨張係数が大きくな
ってケースや上蓋のそれとのマツチングに欠ける傾向が
ある。例えば５Ｃ−４１０（軟化点３５０°Ｃ１３０〜
２５０°Ｃの熱膨張係数α＝ １２０Ｘ １０−７／’
Ｃ）や５Ｂ−４３０（軟化点３７０℃、α＝１１０Ｘ１
０−７／”Ｃ） （いずれも日本電気硝子（株）製）
はそのような例である。このようなガラスを使用して構
成された水晶振動子はしばしば封口が不確実であったり
気密性不良をひきおこしていた。Problems to be Solved by the Invention However, in general, the lower the melting point of the lead-based amorphous glass, the lower the strength of the glass, and the higher the coefficient of thermal expansion, which tends to cause a lack of matching with that of the case and top cover. There is. For example, 5C-410 (softening point 350°C130~
Thermal expansion coefficient α at 250°C = 120X 10-7/'
C) and 5B-430 (softening point 370℃, α=110X1
0-7/”C) (both manufactured by Nippon Electric Glass Co., Ltd.)
is such an example. Crystal resonators constructed using such glass often have unreliable sealing or poor airtightness.
課題を解決するための手段
本発明は、低融点ガラス封着部分に低融点結晶化ガラス
を用いて、ケースと上蓋を封口することにより、上記問
題を解決しようとするものである。Means for Solving the Problems The present invention attempts to solve the above problems by sealing the case and the top cover using low melting point crystallized glass for the low melting point glass sealing portion.
作 用
本発明によれば、低融点ガラス封着部分に強度低下が少
なく、熱膨張係数がケ、−ス、上蓋とマツチングし易い
低融点結晶化ガラスを用いているので、ケースと上蓋と
の間の封口不良や気密性不良のない水晶振動子が得られ
る。According to the present invention, low melting point crystallized glass is used in the low melting point glass sealing portion, which has little strength loss and has a coefficient of thermal expansion that makes it easy to match with the case, case, and top cover. A crystal resonator with no sealing defects or airtightness defects can be obtained.
実施例
〈実施例１〉
ケース３としてフォルステライト（３０〜２５０°Ｃの
熱膨張係数α＝ １００Ｘ １０−７／”Ｃ）、上蓋４
としてソーダガラス（α＝ ９３Ｘ １０−’／”Ｃ”
）またはフォルステライト、リード線１として５０合金
（α：９５Ｘ１０”／’Ｃ）、低融点ガラス封着部分６
の低融点結晶化カラスとしテＰｂＯニア７Ｘ、８２０ａ
：９％、２１１０：ＩＩＸ、５ＩＯｐ：２％。Examples <Example 1> Forsterite as case 3 (thermal expansion coefficient α = 100X 10-7/''C at 30 to 250°C), upper lid 4
Soda glass (α = 93X 10-'/”C”
) or forsterite, 50 alloy (α: 95X10"/'C) as lead wire 1, low melting point glass sealed part 6
Low melting point crystallization of glass and PbO near 7X, 820a
: 9%, 2110: IIX, 5IOp: 2%.
Ａ１．Ｏ，：１％（いずれも重量％）（α： ９５Ｘ
１０−７／”Ｃ１軟化点３７３℃）を用いた。前記ガラ
スはガラス粉末１００部と、アクリル樹脂１部とターピ
ネオール１０部よりなるペーストにして使用した。A1. O,: 1% (both weight%) (α: 95X
10-7/''C1 softening point: 373 DEG C.).The glass was made into a paste consisting of 100 parts of glass powder, 1 part of acrylic resin, and 10 parts of terpineol.
ここで構成した水晶振動子の構成は第１図及び第２図に
示す基本構造を有するものである。まず水晶板２の上に
励振用電極７として銀を蒸着し、これを導電性接着剤５
を用いてリード線１の保持部８に固着させた。これらを
ケース３に納め、ケース３の縁にペーストを塗布し４０
０°Ｃでリード線１を仮接着した。一方上蓋４は周囲に
ペーストを塗布し４００℃で仮接着した。以下これらを
対向させて４３０℃まで加熱し、封着部分８を軟化させ
て封口を完了した。このとき封着部分６にはクラックは
みられなかった。Ｂｅリークテストにより振動子の気密
性を確認したところリーク量は５Ｘ １０−”ａｔｍ、
ｃｃ／ＭｅＱ以下でありリークはないものと判断した。The structure of the crystal resonator constructed here has the basic structure shown in FIGS. 1 and 2. First, silver is vapor-deposited as the excitation electrode 7 on the crystal plate 2, and then the conductive adhesive 5
It was fixed to the holding part 8 of the lead wire 1 using the following. Place these in case 3, apply paste to the edge of case 3, and
Lead wire 1 was temporarily attached at 0°C. On the other hand, the upper lid 4 was temporarily bonded at 400° C. by applying a paste around its periphery. Thereafter, these were placed facing each other and heated to 430° C. to soften the sealed portion 8 and complete the sealing. At this time, no cracks were observed in the sealed portion 6. When the airtightness of the vibrator was confirmed by a Be leak test, the leakage amount was 5X 10-”atm,
It was determined that there was no leakage as it was less than cc/MeQ.
低融点結晶化ガラスを使用したときに気密性が良くなる
のは、熱膨張係数がケース３や上蓋４とマツチングして
いるので歪によるクラックなどを生じないこと、および
ガラス中に微細な結晶が析出することによって、封着が
強固になったためと考えられる。The reason why the airtightness is better when using low melting point crystallized glass is that the coefficient of thermal expansion matches the case 3 and the top cover 4, so cracks due to distortion do not occur, and that there are no microcrystals in the glass. This is thought to be due to the fact that the sealing became stronger due to the precipitation.
〈実施例２〉
低融点結晶化ガラスとしてＰｂＯニア４％、Ｂｓ０ｉ：
１％、Ｚｎ０＝１１％、５１０ａ：２％、Ａｌ２Ｏ，：
１％、Ｂａ０＝３％（いずれも重量％）（α＝ ９ＧＸ
１０−？／”Ｃ１軟化点３８４℃）を用いた以外は実
施例１と同様にして水晶振動子を組み立てた。<Example 2> PbOnia 4%, Bs0i as low melting point crystallized glass:
1%, Zn0=11%, 510a:2%, Al2O,:
1%, Ba0 = 3% (both weight%) (α = 9GX
10-? A crystal resonator was assembled in the same manner as in Example 1, except that C1 (softening point: 384° C.) was used.
Ｂｅリークテストにより振動子の気密性を確認したとこ
ろリークはなかった。When the airtightness of the vibrator was confirmed by a Be leak test, there was no leak.
〈実施例３〉
低融点結晶化ガラスとしてＰｂＯ，ＢｅＯｓ 、ＺｎＯ
を主成分とする７５７５ （Ｃ１＝ ８９Ｘ １０−７
／’Ｃ１軟化点３８０℃、コーニング（株）製）を用い
た以外は実施例１と同様にして水晶振動子を組み立てた
。Ｈｅリークテストにより振動子の気密性を確認したと
ころリークはなかった。<Example 3> PbO, BeOs, ZnO as low melting point crystallized glass
7575 whose main component is (C1= 89X 10-7
A crystal resonator was assembled in the same manner as in Example 1, except that a crystal resonator having a softening point of /'C1 of 380° C. (manufactured by Corning Inc.) was used. When the airtightness of the vibrator was confirmed by a He leak test, there was no leak.
〈実施例４〉
ケース３としてアルミナ（α： ７０Ｘ １０−７／”
Ｃ）、上蓋４として実施例１とは別のソーダガラス（α
＝ ８０Ｘ １０−丁／”Ｃ）あるいはほうをすい酸ガ
ラス（α：６５Ｘ １０−’／’Ｃ）あるいはアルミナ
、リード線１として４２６合金（α：８０Ｘ１０−７／
’Ｃ） 、低融点結晶化ガラスとしてＰｂＯ，ＢｚＯｚ
、ＺｎＯを主成分とする７５８５ （α＝ ６７．５
Ｘ １０−７／”Ｃ１軟化点３６５℃、コーニング（株
）製）を用いた。これ以外は実施例１と同様にして水晶
振動子を組み立てた。Ｈｅリークテストにより振動子の
気密性を確認したところリークはなかった。<Example 4> Alumina (α: 70X 10-7/”
C), soda glass (α
= 80X 10-'/'C) or silicate glass (α: 65X 10-'/'C) or alumina, lead wire 1 using 426 alloy (α: 80X 10-'/'C)
'C), PbO, BzOz as low melting point crystallized glass
, 7585 whose main component is ZnO (α = 67.5
A crystal resonator was assembled in the same manner as in Example 1 except for this. The airtightness of the resonator was confirmed by a He leak test. There was no leak.
なお低融点結晶化ガラスは実施例にあげた以外の市販の
ものでも、作業温度が４３０°Ｃ以下でαがケースと上
蓋に近いものであればすべて使用可能である。It should be noted that any commercially available low melting point crystallized glass other than those mentioned in the examples can be used as long as the working temperature is 430° C. or less and α is close to that of the case and the top cover.
く比較例〉
従来例の封口方法により水晶振動子を組み立てた。すな
わち、まず水晶板２の上に励振用電極７として銀を蒸着
し、導電性接着剤５を用いてリード線１の保持部８に固
着させた。これらをケース３に納め、ケース３の縁に非
晶質鉛系ガラス粉末５Ｃ−４１０（軟化点３５０℃、α
＝ １２０Ｘ １０−７／”Ｃ１日本電気硝子（株）製
）を１００部とアクリル樹脂１部とターピネオールが１
０部よりなるペーストを塗布し、リード線１を４２０℃
で仮接着した。これらと上蓋４の周囲にペーストを塗布
し４２０°Ｃで仮接着したものとを対向させ、４３０°
Ｃまで加熱し、封着部分６を軟化させて封口を完了した
。このとき封着部分６には多数のクラックがみられた。Comparative Example> A crystal resonator was assembled using a conventional sealing method. That is, first, silver was vapor-deposited as the excitation electrode 7 on the crystal plate 2, and it was fixed to the holding part 8 of the lead wire 1 using the conductive adhesive 5. These are placed in case 3, and amorphous lead-based glass powder 5C-410 (softening point 350℃, α
=120
Apply a paste consisting of 0 parts and heat the lead wire 1 to 420℃.
I temporarily attached it. These were applied with paste around the upper lid 4 and temporarily bonded at 420°C, and were placed facing each other at 430°.
C, the sealed portion 6 was softened and the sealing was completed. At this time, many cracks were observed in the sealed portion 6.
Ｈｅリークテストにより振動子の気密性を確認したとこ
ろ、リークが発生し、気密性が不十分であることがわか
った。When the airtightness of the vibrator was confirmed by a He leak test, it was found that leakage occurred and the airtightness was insufficient.
また非晶質鉛系ガラス粉末として５Ｒ−４３０（軟化点
３７０℃、α： ｌｌ０Ｘ １０−７／”Ｃ１日本電
気硝子（株）製）を用いた場合も同様の結果であった。Similar results were obtained when 5R-430 (softening point: 370°C, α: 110X 10-7/''C1, manufactured by Nippon Electric Glass Co., Ltd.) was used as the amorphous lead-based glass powder.
発明の効果
以上のように本発明によれば、封口不良や気密性不良の
ない水晶振動子が得られる。Effects of the Invention As described above, according to the present invention, a crystal resonator without sealing defects or airtightness defects can be obtained.
第１図、第２図は共に水晶振動子の基本的構成を示す斜
視図である。
１０１．リード線、 ２０９．水晶板、 ３８０．ケー
ス、 ４００．上蓋、５．、、導電性接着剤、８．、、
ガラス封着部分、７０８．励振用電極、８１０．保持部
。
代理人の氏名 弁理士 粟野重孝 はか１名Ｎ１図
／−ｍ−す−ド島艮
２−・・水晶板
３゛−ケース
４−上１
６”−イ＃、ｌａ腫、ｆラス町１部分
７−°−励励振電電五
８″゛゛保Both FIGS. 1 and 2 are perspective views showing the basic structure of a crystal resonator. 101. Lead wire, 209. Crystal plate, 380. Case, 400. Top lid, 5. , , conductive adhesive, 8. ,,
Glass sealed part, 708. Excitation electrode, 810. Holding part. Name of agent: Patent attorney Shigetaka Awano 1 person N1 figure/-M-S-Doshima Ai 2-...Crystal plate 3゛-Case 4-Top 1 6"-I#, LA tumor, f Las-cho 1 Part 7-°-excitation oscillating electric current 58″゛゛maintenance
Claims (4)
によりリード線の保持部に支持すると共に電気的に導通
させ、これらをケース内に組み込み、ケースと上蓋を低
融点結晶化ガラスを用いて封口してなることを特徴とす
る水晶振動子。(1) A crystal plate with excitation electrodes arranged on the front and back sides is supported on the lead wire holder using conductive adhesive and electrically conductive, and these are assembled into the case, and the case and top cover are made of low melting point crystallized glass. A crystal resonator characterized by being sealed using.
，Ｂ＿２Ｏ＿３、ＺｎＯを含むことを特徴とする請求項
１記載の水晶振動子。(2) The composition of the low melting point crystallized glass is at least PbO
, B_2O_3, and ZnO.
またはフォルステライトであることを特徴とする請求項
２記載の水晶振動子。(3) The crystal resonator according to claim 2, wherein the case is made of forsterite and the upper cover is made of soda glass or forsterite.
うけい酸ガラスまたはアルミナであることを特徴とする
請求項２記載の水晶振動子。(4) The crystal resonator according to claim 2, wherein the case is made of alumina and the top cover is made of soda glass, borosilicate glass, or alumina.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8622889A JPH02265311A (en) | 1989-04-05 | 1989-04-05 | Crystal resonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8622889A JPH02265311A (en) | 1989-04-05 | 1989-04-05 | Crystal resonator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02265311A true JPH02265311A (en) | 1990-10-30 |
Family
ID=13880933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8622889A Pending JPH02265311A (en) | 1989-04-05 | 1989-04-05 | Crystal resonator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02265311A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999009647A1 (en) * | 1997-08-19 | 1999-02-25 | Miyota Co., Ltd. | Piezoelectric vibrator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57203312A (en) * | 1981-06-09 | 1982-12-13 | Seiko Epson Corp | Quartz oscillator |
| JPS6129529B2 (en) * | 1978-12-21 | 1986-07-07 | Matsushita Electric Ind Co Ltd | |
| JPS6347619B2 (en) * | 1980-02-18 | 1988-09-22 | Taki Chemical |
-
1989
- 1989-04-05 JP JP8622889A patent/JPH02265311A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6129529B2 (en) * | 1978-12-21 | 1986-07-07 | Matsushita Electric Ind Co Ltd | |
| JPS6347619B2 (en) * | 1980-02-18 | 1988-09-22 | Taki Chemical | |
| JPS57203312A (en) * | 1981-06-09 | 1982-12-13 | Seiko Epson Corp | Quartz oscillator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999009647A1 (en) * | 1997-08-19 | 1999-02-25 | Miyota Co., Ltd. | Piezoelectric vibrator |
| GB2345397A (en) * | 1997-08-19 | 2000-07-05 | Citizen Watch Co Ltd | Piezoelectric vibrator |
| GB2345397B (en) * | 1997-08-19 | 2001-10-31 | Citizen Watch Co Ltd | Piezoelectric vibrator |
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