JPH0226405A - Cylinder-type crystal resonator - Google Patents
Cylinder-type crystal resonatorInfo
- Publication number
- JPH0226405A JPH0226405A JP17770088A JP17770088A JPH0226405A JP H0226405 A JPH0226405 A JP H0226405A JP 17770088 A JP17770088 A JP 17770088A JP 17770088 A JP17770088 A JP 17770088A JP H0226405 A JPH0226405 A JP H0226405A
- Authority
- JP
- Japan
- Prior art keywords
- solder
- type crystal
- nickel
- seal tube
- cylinder type
- 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 38
- 229910000679 solder Inorganic materials 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910000990 Ni alloy Inorganic materials 0.000 claims abstract description 10
- 229910000833 kovar Inorganic materials 0.000 claims abstract description 10
- 239000010956 nickel silver Substances 0.000 claims abstract description 9
- MOFOBJHOKRNACT-UHFFFAOYSA-N nickel silver Chemical compound [Ni].[Ag] MOFOBJHOKRNACT-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000010935 stainless steel Substances 0.000 claims abstract description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 4
- 229910052745 lead Inorganic materials 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000005253 cladding Methods 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 239000011521 glass Substances 0.000 abstract description 3
- 150000002739 metals Chemical class 0.000 abstract description 3
- 238000007747 plating Methods 0.000 description 9
- 238000002844 melting Methods 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- -1 nickel silver Chemical class 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 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1
本発明は、真空圧入封止するシリンダータイプの水晶振
動子に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention relates to a cylinder-type crystal resonator that is vacuum press-fit sealed.
従来の真空圧入封止シリンダータイプの水晶振動子にお
いて封止管及び気密端子の外周リングは、材質に洋白あ
るいはコバール又は42ニッケル合金を使用し、Cu
(銅)あるいはNiにニッケル)メツキを下地とし、半
田メツキ(Sn約80%、Pb約20%)で仕上げるこ
とにより、気密性を保ち、シリンダータイプ水晶振動子
の品質を維持する要因の1つとなっている。In conventional vacuum press-fit sealed cylinder type crystal resonators, the sealing tube and the outer ring of the airtight terminal are made of nickel silver, Kovar, or 42 nickel alloy, and are made of Cu.
By using (copper) or nickel on Ni) plating as the base and finishing with solder plating (about 80% Sn, about 20% Pb), it maintains airtightness, which is one of the factors that maintains the quality of cylinder type crystal units. It has become.
従来の真空圧入封止シリンダータイプ水晶振動子は、電
気特性及び信頼性に問題はなく、電子業界分野で広く使
用されている。近年、自動実装技術が進歩すると共にシ
リンダータイプ水晶振動子を自動実装しようとする要求
が出て来た。自動実装する場合、シリンダータイプ水晶
振動子以外の電子部品と同じように、リフロー炉などの
高温雰囲気中(215℃〜265℃)で、MAX3分程
度でシリンダータイプ水晶振動子の電気特性を保証しな
ければならない、しかしながら、シリンダータイプ水晶
振動子の封止管及び気密端子の外周リングは半田メツキ
(Sn約80%、Pb約20%)で仕上げられている。Conventional vacuum press-fit sealed cylinder type crystal resonators have no problems with electrical characteristics and reliability, and are widely used in the electronics industry. In recent years, as automatic mounting technology has progressed, there has been a demand for automatic mounting of cylinder type crystal resonators. When automatically mounting, just like electronic components other than cylinder type crystal resonators, the electrical characteristics of cylinder type crystal resonators can be guaranteed in a maximum of 3 minutes in a high temperature atmosphere such as a reflow oven (215°C to 265°C). However, the sealing tube and the outer ring of the airtight terminal of the cylinder type crystal resonator are finished with solder plating (approximately 80% Sn and approximately 20% Pb).
その場合の半田の融点は183℃である。したがって、
リフロー炉などの高温雰囲気中を通過させると封止管内
面の半田メツキが融け、水晶片に付着し、実装前後で周
波数などの電気特性が変化してしまうという問題点があ
った。以上の問題点のために、従来の真空圧入封止シリ
ンダータイプ水晶振動子の基板実装は、シリンダータイ
プ水晶振動子以外の部品を実装した後で、手作業によっ
て実装するという方法であるため工数がかかりコスト高
となっていた。本発明の目的は、真空圧入封止シリンダ
ータイプ水晶振動子において、前記問題点を解決し、従
来の欠点を除去するものである。すなわち、真空圧入封
止シリンダータイプ水晶振動子の耐熱性向上を計り、リ
フロー炉などの高温雰囲気(265℃×3分)に耐えら
れるようにし、他の電子部品と同時に実装できる真空圧
入封止シリンダータイプ水晶振動子を提供するものであ
る。The melting point of the solder in that case is 183°C. therefore,
When passed through a high-temperature atmosphere such as a reflow oven, the solder plating on the inner surface of the sealing tube melts and adheres to the crystal piece, causing a problem in that electrical characteristics such as frequency change before and after mounting. Due to the above problems, conventional board mounting of vacuum press-fit sealed cylinder type crystal resonators requires manual mounting after mounting components other than the cylinder type crystal resonator, which requires a lot of man-hours. This resulted in high costs. SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and eliminate the conventional drawbacks in a vacuum press-fit sealed cylinder type crystal resonator. In other words, we improved the heat resistance of the vacuum press-fit sealed cylinder type crystal resonator, making it able to withstand high-temperature atmospheres such as reflow ovens (265°C x 3 minutes), and making it possible to mount the vacuum press-fit sealed cylinder at the same time as other electronic components. type crystal unit.
リフロー炉の条件は通常240℃〜250℃で1分程度
であるが、ペーパーフェイズソルダリングのような方法
の場合、温度は265℃まで上がってしまう上に予熱、
冷却等の時間を考えると、合計で約3分間高温雰囲気中
にあると推定出来る。The conditions for a reflow oven are usually 240°C to 250°C for about 1 minute, but in the case of methods such as paper phase soldering, the temperature rises to 265°C and requires preheating.
Considering the time for cooling, etc., it can be estimated that it was in the high temperature atmosphere for about 3 minutes in total.
よって、真空圧入封止シリンダータイプ水晶振動子にお
いても265℃で3分間を保証できれば充分と考えられ
る。真空圧入封止シリンダータイプ水晶振動子で265
℃で3分間を保証させるためには、シリンダータイプ水
晶振動子を構成する封止管のの材料には、クラッド材を
使用し、クラッド材は、Pb90%以上の半田と洋白、
コバール、42ニッケル合金、ステンレス鋼、ニッケル
、アルミニウム6種のうち少なくとも1種類以上の金属
にて構成されており、封止管の内面がPb90%以上の
半田になるように形成されなければならない、又気密端
子の外周リングにおいては、従来の材質(洋白又はコバ
ールあるいは42ニッケル合金)又は、従来の材質にP
b90%以上の半田メツキで仕上げたもの又は、外面に
Pb90%以上の半田を使用し、内面に洋白又はコバー
ルあるいは42ニッケル合金で構成するクラッド材の内
のいづれかを使用する。化学成分Pb90%以上にした
半田又は半田メツキの融点は266℃以上となり、26
5℃をこえているため、前記材質を使用した封止管及び
気密端子にて完成された真空圧入封止シリンダータイプ
水晶振動子は、265’CX3分という条件を保証する
事が出来る。又気密性にも何ら問題はない。Therefore, it is considered that it is sufficient to guarantee a temperature of 3 minutes at 265° C. even in a vacuum press-fit sealed cylinder type crystal resonator. 265 vacuum press-fit sealed cylinder type crystal unit
In order to guarantee 3 minutes at ℃, a clad material is used for the sealing tube that makes up the cylinder type crystal resonator.
It is made of at least one of six types of metals: Kovar, 42 nickel alloy, stainless steel, nickel, and aluminum, and the inner surface of the sealed tube must be formed with solder of 90% or more Pb. In addition, the outer ring of the airtight terminal is made of conventional material (nickel silver, Kovar, or 42 nickel alloy) or P
Either one finished with solder plating of 90% B or more, or a cladding material made of nickel silver, Kovar, or 42 nickel alloy, with solder of 90% or more Pb used on the outer surface and nickel silver, Kovar, or 42 nickel alloy on the inner surface. The melting point of solder or solder plating with a chemical component of Pb of 90% or more is 266°C or higher,
Since the temperature exceeds 5°C, a vacuum press-fit sealed cylinder type crystal resonator completed with a sealed tube and airtight terminal using the above material can guarantee the condition of 265'CX3 minutes. There is also no problem with airtightness.
〔実施例] 以下1本発明を図面に基づいて詳述する。〔Example] The present invention will be explained in detail below based on the drawings.
第1図は、本発明の真空圧入封止シリンダータイプ水晶
振動rの要部断面図である。封止f(1)の材料には、
クラッド材を使用し、クラッド材はPb90%以上の半
田と洋白、コバール、42ニッケル合金、ステンレス鋼
、ニッケル、アルミニウム6種の肉受なくとも1種類以
上の金属にて構成されており、封止管(1)の内面はP
b90%以上の半田となるように形成されている。外周
リング(2)、端子リード(3)、絶縁ガラス(4)か
らなる気密端子のうち外周リング(2)は、外面にはP
b90・%以上の半田を使用し、内面には、42ニッケ
ル合金又はコバールあるいは洋白で構成するクラッド材
を使用する。又外周リング(2)には従来の材質(洋白
又はコバールあるいは42ニッケル合金)を使用したも
の又は、従来の材質にPb90%以上の半田メツキで仕
上げたものを使用しても+m題はない、?!ti(5)
を形成した水晶片(6)(図中の水晶片(6)は、矩形
板状水晶振動片である。)は外周リング(2)と絶縁ガ
ラス(4)からなる基台を貫通する2木のリード端子(
3)の間にセットされ、高融点導電性接着剤(7)(融
点266℃以上)によって、電気的接続と礪械的強度の
2つを確保している。水晶片(6)については、通常矩
形板状水晶振動片、音叉型水晶振動片が真空圧入封止シ
リンダータイプ水晶振動子に使用されている。FIG. 1 is a sectional view of a main part of the vacuum press-fit sealed cylinder type crystal vibrator r of the present invention. The material of the seal f(1) includes:
The cladding material is made of solder with 90% Pb or more and one or more metals including nickel silver, Kovar, 42 nickel alloy, stainless steel, nickel, and aluminum. The inner surface of the stop tube (1) is P
It is formed to be solder with b90% or more. Outer ring (2) of the airtight terminal consisting of outer ring (2), terminal lead (3), and insulating glass (4) has P on the outer surface.
Use solder with b90% or more, and use a clad material made of 42 nickel alloy, Kovar, or German silver for the inner surface. Also, there is no +m problem even if the outer ring (2) is made of a conventional material (nickel silver, Kovar, or 42 nickel alloy), or a conventional material finished with solder plating with 90% Pb or more. ,? ! ti(5)
(The crystal piece (6) in the figure is a rectangular plate-shaped crystal vibrating piece.) The crystal piece (6) formed with the crystal piece (6) in the figure is a rectangular plate-shaped crystal vibrating piece. lead terminal (
3), and the high melting point conductive adhesive (7) (melting point 266° C. or higher) ensures both electrical connection and mechanical strength. As for the crystal piece (6), a rectangular plate-shaped crystal vibrating piece or a tuning fork-shaped crystal vibrating piece is usually used in a vacuum press-fit sealed cylinder type crystal vibrator.
第2図は、半田中のPb含有料をパラメーターとして、
融点温度を表したグラフである。図から読み取れるよう
に半田中のPbを90%以上にしないと266℃以上の
融点にならないため、リフロー類などの高温雰囲気に耐
えられない、よってPb90%以上の半田を使用しなけ
ればいけない。Figure 2 shows the Pb content in the solder as a parameter.
It is a graph showing melting point temperature. As can be seen from the figure, unless the Pb content in the solder is 90% or more, the melting point will not reach 266°C or higher, so it will not be able to withstand high-temperature atmospheres such as reflow products, so solder with 90% Pb or more must be used.
第3図は、本発明の一実施例の斜視図である。FIG. 3 is a perspective view of one embodiment of the present invention.
真空圧入封止シリンダータイプ水晶振動子の外形寸法と
しては
直径(w) X 高さ(1)
3mm X10mm
3mm X 9 mm
3mm X 8 mm
m2rn X 6 mm1mm
X 4.5mm
1mm X 4 mm
以」16種が一般的な寸法であり、本発明は前記6種の
タイプにおいて実施可能である。The external dimensions of the vacuum press-fit sealed cylinder type crystal resonator are: diameter (w) x height (1) 3mm x 10mm 3mm x 9mm 3mm x 8mm m2rn x 6mm 1mm
16 types of general dimensions are 4.5 mm x 1 mm x 4 mm, and the present invention can be implemented in the above six types.
[発明の効果)
以上の説明でも明らかなように本発明によれば、真空圧
入封止シリンダータイプ水晶振動子の基板への実装にお
いて、リフロー炉などの高温雰囲気(265℃×3分)
に耐えられるため自動実装が可能になり工数の削減にな
る。又封止管へのメツキが無くなるため真空圧入封止シ
リンダータイプ水晶振動子のコストも低減し、メツキ工
程での不純物付着による高温時のガス発生もなくなり、
品質はきわめて安定になる0以上よりコスト低減及び信
頼性向上に関して大きな効果があるといえる。[Effects of the Invention] As is clear from the above description, according to the present invention, when mounting a vacuum press-fit sealed cylinder type crystal resonator on a substrate, a high temperature atmosphere (265° C. x 3 minutes) such as a reflow oven is used.
Since it can withstand high temperatures, automatic implementation becomes possible and reduces man-hours. In addition, since there is no plating on the sealing tube, the cost of vacuum press-fit sealed cylinder type crystal units is reduced, and gas generation at high temperatures due to impurity adhesion during the plating process is also eliminated.
It can be said that a value of 0 or more, which makes the quality extremely stable, has a greater effect on cost reduction and reliability improvement.
第1図は1本発明の水晶振動子の要部断面図である。
第2図は、半田中のPb含有料をパラメーターとした半
田の融点温度を表わした図である。
第3図は、本発明の一実施例の斜視図である。
(1) 封止管
(2) 外周リング
(3) 端子リード
(4) 絶縁ガラス
(5) ?を極
(6) 水晶片
(7) 高融点導電性接着剤
第1図
第2図
半田Pb(%)FIG. 1 is a sectional view of a main part of a crystal resonator according to the present invention. FIG. 2 is a diagram showing the melting point temperature of solder using the Pb content in the solder as a parameter. FIG. 3 is a perspective view of one embodiment of the present invention. (1) Sealed tube (2) Outer ring (3) Terminal lead (4) Insulating glass (5) ? Pole (6) Crystal piece (7) High melting point conductive adhesive Figure 1 Figure 2 Solder Pb (%)
Claims (1)
、該水晶振動子を構成する封止管(金属製キャップ)の
材料には、クラッド材を使用し、該クラッド材は、Pb
(鉛)90%以上の半田と洋白、コバール、42ニッケ
ル合金、ステンレス鋼、ニッケル、アルミニウム6種の
内少なくとも1種類以上の金属にて構成されており、封
止管の内面が、Pb90%以上の半田になるように形成
されることを特徴とする真空圧入封止シリンダータイプ
水晶振動子。In a vacuum press-fit sealed cylinder type crystal resonator, a cladding material is used as the material of the sealing tube (metal cap) that constitutes the crystal resonator, and the cladding material is made of Pb.
(Lead) 90% or more of solder and at least one of six types of metal such as nickel silver, Kovar, 42 nickel alloy, stainless steel, nickel, and aluminum, and the inner surface of the sealed tube is 90% Pb. A vacuum press-fit sealed cylinder type crystal resonator characterized in that it is formed to be soldered as described above.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17770088A JPH0226405A (en) | 1988-07-15 | 1988-07-15 | Cylinder-type crystal resonator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17770088A JPH0226405A (en) | 1988-07-15 | 1988-07-15 | Cylinder-type crystal resonator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0226405A true JPH0226405A (en) | 1990-01-29 |
Family
ID=16035575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17770088A Pending JPH0226405A (en) | 1988-07-15 | 1988-07-15 | Cylinder-type crystal resonator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0226405A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0496121U (en) * | 1991-01-10 | 1992-08-20 | ||
WO1995011548A1 (en) * | 1993-10-18 | 1995-04-27 | Seiko Epson Corporation | Rectangular at-cut quartz crystal plate, quartz crystal unit, and quartz oscillator and manufacture of quartz crystal plate |
US6469423B2 (en) | 1993-10-18 | 2002-10-22 | Seiko Epson Corporation | Rectangular at-cut quartz element, quartz resonator, quartz resonator unit and quartz oscillator, and method of producing quartz element |
-
1988
- 1988-07-15 JP JP17770088A patent/JPH0226405A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0496121U (en) * | 1991-01-10 | 1992-08-20 | ||
WO1995011548A1 (en) * | 1993-10-18 | 1995-04-27 | Seiko Epson Corporation | Rectangular at-cut quartz crystal plate, quartz crystal unit, and quartz oscillator and manufacture of quartz crystal plate |
US6469423B2 (en) | 1993-10-18 | 2002-10-22 | Seiko Epson Corporation | Rectangular at-cut quartz element, quartz resonator, quartz resonator unit and quartz oscillator, and method of producing quartz element |
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