JPH09232057A - Ic socket - Google Patents

Ic socket

Info

Publication number
JPH09232057A
JPH09232057A JP8239653A JP23965396A JPH09232057A JP H09232057 A JPH09232057 A JP H09232057A JP 8239653 A JP8239653 A JP 8239653A JP 23965396 A JP23965396 A JP 23965396A JP H09232057 A JPH09232057 A JP H09232057A
Authority
JP
Japan
Prior art keywords
contact pin
contact
plating
lead
socket
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
Application number
JP8239653A
Other languages
Japanese (ja)
Inventor
Mitsuru Kawakami
満 川上
Hiroshi Kiso
弘 木曽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Enplas Corp
Original Assignee
Enplas Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Enplas Corp filed Critical Enplas Corp
Priority to JP8239653A priority Critical patent/JPH09232057A/en
Publication of JPH09232057A publication Critical patent/JPH09232057A/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing Of Individual Semiconductor Devices (AREA)
  • Connecting Device With Holders (AREA)

Abstract

PROBLEM TO BE SOLVED: To prevent a substance having high electric resistance from adhering to the contact part of a contact pin, by applying specific plating to the contact part of the contact pin of an IC socket, and to the mounting connection part of the contact pin respectively. SOLUTION: In an IC socket, wherein many contact pins 1 are plantedly provided on a main body 2, for electrically connecting between a lead 3a and a circuit board, by mounting an IC package 3 applied soldering plating to a lead 3a; the following means are adopted. That is, at least the surface of the contact part 1a with the lead 3a of a contact pin 1 is bad in solder wettability, also is applied plating by a substance having low electric resistance, and moreover gold plating is applied on at lest the surface of a soldering connecting part 1b of the contact pin 1 when the contact pin 1 is mounted. As plating material applied to the surface of the contact part 1a of the contact pin, for example, Ag-C, Au-Ni, Ni-B, and Pd-P are cited.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、ICパッケージを装着
して、前記ICパッケージのリードとICパッケージの
検査用回路との電気的接続をさせるためのICソケット
に用いられるコンタクトピンに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contact pin used in an IC socket for mounting an IC package and electrically connecting a lead of the IC package and an inspection circuit of the IC package.

【0002】[0002]

【従来の技術】図4は、従来のフラット型ICパッケー
ジ用のICソケットにICパッケージを装着した状態の
一例を示す断面図である。ソケット本体2に多数植設さ
れたコンタクトピンの実装接続部1bは、図示しないI
Cパッケージの検査用回路基盤に半田付けされており、
コンタクトピンの接触部1a上に、ICパッケージのリ
ード3aを載置することによって、ICパッケージ3と
前記回路基盤との電気的接続がなされる。
2. Description of the Related Art FIG. 4 is a sectional view showing an example of a state in which an IC package is mounted on a conventional IC socket for a flat type IC package. The mounting connection portions 1b of the contact pins that are implanted in the socket body 2 are not shown in the figure.
Soldered to the inspection circuit board of the C package,
By mounting the leads 3a of the IC package on the contact portions 1a of the contact pins, the IC package 3 and the circuit board are electrically connected.

【0003】通常、ICパッケージのリード3aの表面
は半田メッキが施されている。また、コンタクトピン1
は通常、ベリリウム銅で作られており、その上にニッケ
ルメッキを施し、更にその上に金メッキが施されてい
る。
Usually, the surface of the lead 3a of the IC package is plated with solder. Also, contact pin 1
Is usually made of beryllium copper, with nickel plating on top of it, and then gold plating on top of it.

【0004】金メッキは、防食性に優れ、電気抵抗も低
く、半田付けもしやすい。しかし、金は高温下では、半
田と化学反応をしやすく、半田と結合して電気抵抗の高
い物質に変化してしまう。そのため、ICソケットを1
20℃〜150℃の高温下において使用する、所謂、バ
ーイン試験等に長い間使用していると、リードの表面の
半田メッキとコンタクトピンの表面の金メッキが化学反
応を起こし、コンタクトピンの接触部に電気抵抗の高い
物質が付着して、ICパッケージの正しい検査ができな
くなってしまう。
Gold plating has excellent corrosion resistance, low electric resistance, and is easy to solder. However, gold easily reacts with solder under high temperature, and is combined with solder to change into a substance having high electric resistance. Therefore, 1 IC socket
When used for a long time in so-called burn-in test, which is used at a high temperature of 20 ° C to 150 ° C, the solder plating on the surface of the lead and the gold plating on the surface of the contact pin cause a chemical reaction, and the contact portion of the contact pin A substance having a high electric resistance adheres to the IC package, which makes it impossible to correctly inspect the IC package.

【0005】そこで、コンタクトピンの接触部1aに前
記の電気抵抗の高い物質がある程度付着してICパッケ
ージの検査に支障が出たら、ブラシやサンドペーパーで
コンタクトピンの接触部1aを擦って、前記の電気抵抗
の高い物質を除去していた。
Therefore, if the substance having high electric resistance adheres to the contact portion 1a of the contact pin to some extent and interferes with the inspection of the IC package, the contact portion 1a of the contact pin is rubbed with a brush or sandpaper to The material with high electric resistance was removed.

【0006】[0006]

【発明が解決しようとする課題】現在、ICパッケージ
のリードは高密度に多数設けられているので、これに対
応して、ICソケットのコンタクトピンも高密度に多数
ソケット本体に植設されている。そのため、コンタクト
ピンの接触部に付着した前記の電気抵抗の高い物質をい
ちいちブラシやサンドペーパーで擦って除去するのは、
大変な時間と労力を必要としていた。また、極端に薄い
コンタクトピンの場合、ブラシやサンドペーパーでコン
タクトピンを擦ると、コンタクトピンを変形させてしま
うこともあった。
At present, a large number of leads of an IC package are provided at a high density, and correspondingly, a large number of contact pins of an IC socket are also implanted at a high density in the socket body. . Therefore, it is necessary to rub and remove the above-mentioned substance having high electric resistance attached to the contact portion of the contact pin with a brush or sandpaper.
It took a lot of time and effort. In the case of extremely thin contact pins, rubbing the contact pins with a brush or sandpaper sometimes deforms the contact pins.

【0007】更に、多量に電気抵抗の高い物質がコンタ
クトピンの接触部に付着してしまうと、ブラシやサンド
ペーパーで擦っても取れなくなり、ICソケット自体を
破棄せざるを得なくなっていた。また、何度もコンタク
トピンの接触部をブラシやサンドペーパーで擦っている
と、コンタクトピンの接触部に施されていた金メッキと
ニッケルメッキも一緒に取れてしまい、コンタクトピン
として使用ができなくなり、やはり、ICソケット自体
を破棄しなければならなかった。
Further, if a large amount of a substance having high electric resistance adheres to the contact portion of the contact pin, it cannot be removed even by rubbing with a brush or sandpaper, and the IC socket itself has to be discarded. Also, if you repeatedly rub the contact part of the contact pin with a brush or sandpaper, the gold plating and nickel plating that were applied to the contact part of the contact pin will be removed together, and you will not be able to use it as a contact pin. After all, the IC socket itself had to be destroyed.

【0008】本発明は、ICパッケージのリードの表面
の半田メッキと、コンタクトピンの表面の金メッキが化
学反応を起こさないようにして、電気抵抗の高い物質が
コンタクトピンの接触部に付着しないようにすることを
目的とする。
According to the present invention, the solder plating on the surface of the lead of the IC package and the gold plating on the surface of the contact pin do not cause a chemical reaction so that a substance having a high electric resistance does not adhere to the contact portion of the contact pin. The purpose is to do.

【0009】[0009]

【課題を解決するための手段】本発明は、ICソケット
のコンタクトピンの接触部を、電気抵抗が低く、しか
も、所謂、半田濡れ性の悪い物質でメッキし、コンタク
トピンの実装接続部は金メッキを施すことによって、上
記の課題を解決する。
According to the present invention, a contact portion of a contact pin of an IC socket is plated with a substance having a low electric resistance and a so-called poor solder wettability, and a mounting connection portion of the contact pin is plated with gold. The above-mentioned problem is solved by applying.

【0010】[0010]

【作用】半田濡れ性が悪いとは、化学的に半田との親和
性に乏しい為、半田との化学反応を開始しずらく、半田
との化合物を作りにくい性質のことである。上記のよう
な性質を有する物質をコンタクトピンの接触部にメッキ
することにより、コンタクトピンの接触部にICパッケ
ージのリードを載置しても、リードの表面の半田メッキ
と、コンタクトピンの表面の金メッキは接触しないの
で、電気抵抗の高い物質ができることはない。
[Function] Poor solder wettability means that the chemical reaction with the solder is difficult due to its poor chemical affinity with the solder, making it difficult to form a compound with the solder. By plating the contact portion of the contact pin with a substance having the above-mentioned properties, even if the lead of the IC package is placed on the contact portion of the contact pin, the solder plating on the surface of the lead and the contact pin surface Since the gold plating does not come into contact, no material with high electrical resistance can be produced.

【0011】また、コンタクトピンの実装接続部は金メ
ッキを施されているので、コンタクトピンの実装接続部
をICパッケージの検査用回路基盤に容易に半田付けで
き、しかも前記回路基盤との接触抵抗も低くできる。
Further, since the mounting connection portion of the contact pin is plated with gold, the mounting connection portion of the contact pin can be easily soldered to the circuit board for inspection of the IC package, and the contact resistance with the circuit board is also high. Can be lowered.

【0012】[0012]

【実施例】図1は、フラット型ICパッケージ用ICソ
ケットに用いられるコンタクトピンの一例を示す正面図
である。図中、1はコンタクトピンで、斜線部1aはI
Cパッケージのリードと接触する接触部、斜線部1bは
ICパッケージの検査用回路基盤に半田付けされること
によって接続される実装接続部である。
DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a front view showing an example of a contact pin used in an IC socket for a flat type IC package. In the figure, 1 is a contact pin, and the hatched portion 1a is I
The contact portion that comes into contact with the lead of the C package and the hatched portion 1b are mounting connection portions that are connected by being soldered to the inspection circuit board of the IC package.

【0013】ます、ベリリウム銅をプレス加工すること
によって、図1に示すコンタクトピン1の形状に加工す
る。次に、コンタクトピン1全体をニッケルメッキし、
さらにその上に金メッキを全体に施す。最後に、金メッ
キを施されたコンタクトピンの接触部1aの上のみ、ま
たは、コンタクトピンの実装接続部1bを除く部分全体
に、半田濡れ性が悪く、しかも電気抵抗の低い物質、例
えば、Ag−C,Au−Ni,Ni−B,Pd−P等の
物質をメッキする。
First, beryllium copper is pressed into the shape of the contact pin 1 shown in FIG. Next, the entire contact pin 1 is nickel plated,
Furthermore, gold plating is applied to the entire surface. Finally, only on the contact portion 1a of the gold-plated contact pin or on the entire portion of the contact pin excluding the mounting connection portion 1b, a substance having poor solder wettability and low electric resistance, for example, Ag- A material such as C, Au-Ni, Ni-B, Pd-P is plated.

【0014】あるいは、図1に示すコンタクトピン1の
形状に加工し、コンタクトピン1全体にニッケルメッキ
を施した後に、上記に記載した半田濡れ性が悪い物質
を、先にコンタクトピン1全体にメッキし、最後に、コ
ンタクトピンの実装接続部1bのみ、または、コンタク
トピンの接触部1aを除く部分全体に金メッキを施して
もよい。
Alternatively, after the contact pin 1 shown in FIG. 1 is processed and the whole contact pin 1 is plated with nickel, the above-mentioned substance having poor solder wettability is plated on the entire contact pin 1 first. However, finally, gold plating may be applied only to the mounting connection portion 1b of the contact pin or to the entire portion of the contact pin excluding the contact portion 1a.

【0015】コンタクトピンの形状は、上記実施例に限
定するものではなく、図2や図3に示すものなど、色々
な種類の形状のコンタクトピンに本発明は適用できる。
また、コンタクトピンの接触部1aにメッキする物質
も、上記に記載したもの以外の物質でも、半田濡れ性が
悪く、電気抵抗が低い物質ならば何でもよい。
The shape of the contact pin is not limited to the above embodiment, and the present invention can be applied to various types of contact pins such as those shown in FIG. 2 and FIG.
Further, the substance to be plated on the contact portion 1a of the contact pin may be any substance other than those described above, as long as it has poor solder wettability and low electric resistance.

【0016】[0016]

【発明の効果】コンタクトピンの接触部を、半田濡れ性
が悪く、電気抵抗が低い物質によってメッキしたことに
よって、ICパッケージのリードに施されている半田メ
ッキと、コンタクトピンの接触部に施されたメッキが化
学反応することがなくなり、コンタクトピンの接触部に
合金等が付着することが防げるので、コンタクトピンの
寿命が延び、ICソケットの高寿命化が可能になり、し
かも、ICパッケージのリードとコンタクトピンの接触
部との間の電気抵抗も低く押さえられる。
The contact portion of the contact pin is plated with a substance having poor solder wettability and low electric resistance, so that the solder plating applied to the leads of the IC package and the contact portion of the contact pin are applied. Since the plating does not react chemically, it is possible to prevent the adhesion of alloy or the like to the contact portion of the contact pin, so that the life of the contact pin can be extended and the life of the IC socket can be extended. The electrical resistance between the contact portion and the contact portion of the contact pin is also suppressed to a low level.

【0017】また、コンタクトピンの実装接続部は、従
来と同じく金メッキを施してあるので、コンタクトピン
の実装接続部の検査用回路基盤との半田付けのしやす
さ、及び、コンタクトピンの実装接続部と検査用回路と
の接続部分での電気抵抗は、従来のままである。
Further, since the mounting connection portion of the contact pin is gold-plated as in the conventional case, it is easy to solder the mounting connection portion of the contact pin to the inspection circuit board, and the mounting connection of the contact pin. The electrical resistance at the connection between the section and the inspection circuit remains the same as before.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明に用いるコンタクトピンの一例を示す正
面図である。
FIG. 1 is a front view showing an example of a contact pin used in the present invention.

【図2】本発明に用いるコンタクトピンの他の例を示す
正面図である。
FIG. 2 is a front view showing another example of the contact pin used in the present invention.

【図3】本発明に用いるコンタクトピンの第三の例を示
す正面図である。
FIG. 3 is a front view showing a third example of the contact pin used in the present invention.

【図4】図1に示すコンタクトピンを植設したICソケ
ットに、ICパッケージを装着した状態を示す断面図で
ある。
FIG. 4 is a cross-sectional view showing a state in which an IC package is mounted on the IC socket in which the contact pin shown in FIG. 1 is implanted.

【符号の説明】[Explanation of symbols]

1 コンタクトピン 1a コンタクトピンの接触部 1b コンタクトピンの実装接続部 1 Contact pin 1a Contact pin contact part 1b Contact pin mounting connection part

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 リードに半田メッキを施したICパッケ
ージを装着して、前記リードと回路基盤との電気的接続
を行わせるための、本体に多数のコンタクトピンを植設
したICソケットにおいて、少なくとも前記コンタクト
ピンのリードとの接触部の表面は、半田濡れ性が悪く、
かつ電気抵抗の低い物質でメッキが施されており、更
に、少なくとも前記コンタクトピンの実装時の半田付け
接続部の表面は、金メッキが施されていることを特徴と
するICソケット。
1. An IC socket, in which a large number of contact pins are planted in a main body, for mounting an IC package having a lead plated with solder, and for electrically connecting the lead and a circuit board, The surface of the contact portion with the lead of the contact pin has poor solder wettability,
An IC socket characterized in that it is plated with a substance having a low electric resistance, and at least the surface of the soldering connection portion at the time of mounting the contact pin is plated with gold.
JP8239653A 1996-08-07 1996-08-07 Ic socket Pending JPH09232057A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8239653A JPH09232057A (en) 1996-08-07 1996-08-07 Ic socket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8239653A JPH09232057A (en) 1996-08-07 1996-08-07 Ic socket

Publications (1)

Publication Number Publication Date
JPH09232057A true JPH09232057A (en) 1997-09-05

Family

ID=17047911

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8239653A Pending JPH09232057A (en) 1996-08-07 1996-08-07 Ic socket

Country Status (1)

Country Link
JP (1) JPH09232057A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002001232A1 (en) * 2000-06-28 2002-01-03 Nhk Spring Co., Ltd. Conductive contact
US7329129B2 (en) 2005-03-18 2008-02-12 Alps Electric Co., Ltd. Test apparatus and method
US7514946B2 (en) 2005-03-18 2009-04-07 Alps Electric Co., Ltd. Semiconductor carrier tray, and burn-in board, burn-in test method, and semiconductor manufacturing method using the semiconductor carrier tray
JP2012230117A (en) * 2005-09-22 2012-11-22 Enplas Corp Electric contact and socket for electric component
WO2014003003A1 (en) * 2012-06-25 2014-01-03 山一電機株式会社 Electrical test contact and electrical test socket using same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58169878A (en) * 1982-03-31 1983-10-06 ケル株式会社 Contact for ic socket
JPH038279A (en) * 1989-06-02 1991-01-16 Tanaka Kikinzoku Kogyo Kk Contact piece for face-to-face contact with electric/ electronic component
JPH03112077A (en) * 1989-09-27 1991-05-13 Tanaka Kikinzoku Kogyo Kk Opposed contacting contact for electric/electronic component

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58169878A (en) * 1982-03-31 1983-10-06 ケル株式会社 Contact for ic socket
JPH038279A (en) * 1989-06-02 1991-01-16 Tanaka Kikinzoku Kogyo Kk Contact piece for face-to-face contact with electric/ electronic component
JPH03112077A (en) * 1989-09-27 1991-05-13 Tanaka Kikinzoku Kogyo Kk Opposed contacting contact for electric/electronic component

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002001232A1 (en) * 2000-06-28 2002-01-03 Nhk Spring Co., Ltd. Conductive contact
JP4669651B2 (en) * 2000-06-28 2011-04-13 日本発條株式会社 Conductive contact
US7329129B2 (en) 2005-03-18 2008-02-12 Alps Electric Co., Ltd. Test apparatus and method
US7514946B2 (en) 2005-03-18 2009-04-07 Alps Electric Co., Ltd. Semiconductor carrier tray, and burn-in board, burn-in test method, and semiconductor manufacturing method using the semiconductor carrier tray
JP2012230117A (en) * 2005-09-22 2012-11-22 Enplas Corp Electric contact and socket for electric component
JP5334416B2 (en) * 2005-09-22 2013-11-06 株式会社エンプラス Electrical contact and socket for electrical parts
USRE45924E1 (en) 2005-09-22 2016-03-15 Enplas Corporation Electric contact and socket for electrical part
WO2014003003A1 (en) * 2012-06-25 2014-01-03 山一電機株式会社 Electrical test contact and electrical test socket using same
JPWO2014003003A1 (en) * 2012-06-25 2016-06-02 山一電機株式会社 Electrical test contact and electrical test socket using the same
JP2016166899A (en) * 2012-06-25 2016-09-15 山一電機株式会社 Electric test contact and electric test receptacle using the same

Similar Documents

Publication Publication Date Title
US6285204B1 (en) Method for testing semiconductor packages using oxide penetrating test contacts
JP2000299150A (en) Connecting device
JP2007240235A (en) Energization testing probe and probe assembly
JPH0529406A (en) Semiconductor inspection apparatus
JP3458684B2 (en) Contact probe
JP2001337110A (en) Probe pin and probe card
JPH09232057A (en) Ic socket
US6846735B1 (en) Compliant test probe with jagged contact surface
KR100263431B1 (en) Method of joining an electrical contact element to a substrate
JP3309099B2 (en) Connection method between circuit board and surface mount LSI
JPH0617176U (en) IC socket
JP3084434B2 (en) BGA socket
JP2002164106A (en) Electric connector
JP2984638B2 (en) IC socket
JP3578708B2 (en) IC socket
JP2000162238A (en) Split probe card
JP2002008804A (en) Electrical property testing device for semiconductor device
JP2005061978A (en) Socket for semiconductor device and its cleaning method
JP3309100B2 (en) LSI package mounting method
JPS62276861A (en) Semiconductor evaluation device
JP2002093541A (en) Ic socket
US20040175937A1 (en) Metallic coating for electrical connectors
KR910006780Y1 (en) Pin testing socket
JP2003045533A (en) Contact pin and socket for electrical component
JP2003151707A (en) Socket