JPH0342858A - Package for semiconductor integrated circuit - Google Patents

Package for semiconductor integrated circuit

Info

Publication number
JPH0342858A
JPH0342858A JP17868589A JP17868589A JPH0342858A JP H0342858 A JPH0342858 A JP H0342858A JP 17868589 A JP17868589 A JP 17868589A JP 17868589 A JP17868589 A JP 17868589A JP H0342858 A JPH0342858 A JP H0342858A
Authority
JP
Japan
Prior art keywords
cap
base
ring
package
stopper
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
JP17868589A
Other languages
Japanese (ja)
Inventor
Tatsuo Yokoyama
横山 達男
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP17868589A priority Critical patent/JPH0342858A/en
Publication of JPH0342858A publication Critical patent/JPH0342858A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To obtain a package provided with a freely dismountable cap by forming a ring-shaped cap stopper of a shape memory alloy, reducing a diameter under the state at temperatures higher and lower than normal temperature, fast sticking the cap onto an O ring and housing a semiconductor integrated circuit by the change of the shape of the cap stopper. CONSTITUTION:A package is composed of a base 2, in which a chip 1 loaded on the package is disposed, and a cap 3 installed to the base 2 in order to seal the base 2. A ring-shaped cap stopper 4 is formed of a shape memory alloy, and a diameter is reduced under the state of temperatures lower and higher than normal temperature. An O ring 5 is set up into the base 2, a cap 3, to a peripheral side face of which a recessed section 12 to which the cap stopper 4 is fitted is shaped, is fast stock onto the O ring 5, and the O ring 5 is interposed between the base 2 and the cap 3. A groove 10 oppositely faced to the recessed section 12 of the cap 3 is formed to the internal side face of the base 2, and the cap stopper 4 is housed so as to be crossed in the groove 10 and the recessed section 12. Accordingly, the package in which the cap is opened and closed freely can be acquired.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、半導体集積回路用パッケージに関し、特にそ
のベースとキャップとの封止方法を改良した半導体集積
回路用パッケージに関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a package for a semiconductor integrated circuit, and more particularly to a package for a semiconductor integrated circuit with an improved sealing method between a base and a cap.

(従来の技術) 従来の半導体集積回路用パッケージにおける封止方法は
、第3図に示すように、金属等のキャップ3をろう付は
等によって直接パッケージのベース2に接着していた。
(Prior Art) As shown in FIG. 3, in the conventional sealing method for a semiconductor integrated circuit package, a cap 3 made of metal or the like is directly bonded to the base 2 of the package by brazing or the like.

そしてかかる方法により、チップlの気密を保持してい
るため、容易に開封できず、また−旦開封すると再封止
することは困難であった。
Since this method maintains the airtightness of the chip 1, it cannot be easily opened, and once opened, it is difficult to reseal it.

(発明が解決しようとする課題) しかし、実際にはベース内部のチップや、該チップのバ
ットとベースの端子とを接続する配線等の状態を確認し
、また直接バット等について接触してその調整等をする
ためには、キャップの開封が必要である場合があり得る
(Problem to be solved by the invention) However, in reality, it is necessary to check the condition of the chip inside the base and the wiring connecting the butt of the chip and the terminal of the base, and to adjust it by directly touching the bat etc. etc., it may be necessary to open the cap.

本発明はかかる事情にかんがみてされたものであり、そ
の課題は、キャップの開閉が自在な半導体集積回路用パ
ッケージを提供することである。
The present invention has been made in view of the above circumstances, and an object thereof is to provide a package for a semiconductor integrated circuit whose cap can be opened and closed freely.

(課題を解決するための手段) 本発明は上記の課題の解決のため、以下のような構成と
している。即ち、パッケージに搭載するチップを内部に
配設したベースと、ベースを封止するために該ベースに
装着するキャップとからなる半導体集積回路用パッケー
ジにおいて、リング状のキャップストッパーを形状記憶
合金により形成して、常温よりも低高温状態におかれた
場合には径が小さくなるように構成し、またベース内に
Oリングを設置して、周囲側面に上記キャップストッパ
ーが嵌合する凹部を形成したキャップを上記0リング上
に密着させて、該0リングが上記ベースと上記キャップ
の間に介在するようにし、上記ベースの内部側面には、
上記キャップの凹部と向き合う溝を設け、上記キャップ
ストッパーを、上記溝内と上記凹部内とにまたがるよう
に収納したものである。
(Means for Solving the Problems) In order to solve the above problems, the present invention has the following configuration. That is, in a semiconductor integrated circuit package consisting of a base in which a chip to be mounted on the package is disposed, and a cap attached to the base to seal the base, a ring-shaped cap stopper is formed of a shape memory alloy. The cap stopper is configured to have a smaller diameter when placed in a lower temperature than room temperature, and an O-ring is installed in the base to form a recess into which the cap stopper fits. A cap is brought into close contact with the O-ring so that the O-ring is interposed between the base and the cap, and an inner side surface of the base includes:
A groove facing the recess of the cap is provided, and the cap stopper is housed so as to straddle the groove and the recess.

(実施例) 次に、本発明について図面を参照して説明する。(Example) Next, the present invention will be explained with reference to the drawings.

第1図は、本発明のパッケージのキャップを外した状態
の断面図、第2図は、そのキャップを装着した状態の断
面図である。
FIG. 1 is a sectional view of the package of the present invention with the cap removed, and FIG. 2 is a sectional view of the package with the cap attached.

このパッケージは中空の略円筒形であるベース2と、そ
の開口部6を覆うキャップ3とからなる。該ベース2の
内部の中央には、このパッケージに搭載するチップlが
固定され、またその内部側面7の円周に沿って段部8を
形成し、さらに該段部8上にOリング5の収納溝9を設
けて、該収納溝9内にOリング5を設置している。また
、ベース2内の上記段部8上方の内側面には、キャップ
ストッパー4が嵌合する溝lOを形成している。
This package consists of a hollow, substantially cylindrical base 2 and a cap 3 that covers an opening 6 of the base 2. A chip l to be mounted on the package is fixed at the center of the inside of the base 2, and a step 8 is formed along the circumference of the inner side surface 7, and an O-ring 5 is placed on the step 8. A storage groove 9 is provided, and an O-ring 5 is installed in the storage groove 9. Furthermore, a groove 10 into which the cap stopper 4 fits is formed on the inner surface of the base 2 above the stepped portion 8.

一方、キャップ3はベース2の円形の上記開口部6に嵌
合する形状、大きさに成形され、その周側面11には、
凹部12を設け、該凹部12内にはキャップストッパー
4が収納される構造である。
On the other hand, the cap 3 is molded in a shape and size to fit into the circular opening 6 of the base 2, and its peripheral side 11 has the following features:
A recess 12 is provided, and the cap stopper 4 is housed in the recess 12.

また、キャップストッパー4は、形状記憶合金により、
一部に切れ目13を有するリング状に形成する。そして
、常温において、第3図に示すように、上記ベース2の
内側面の満10内と上記凹部12内とにまたがる程度に
、径が大きい状態となるように形状を記憶させて、該溝
lOと凹部12内に収納する。また、該キャップストッ
パー4は、常温よりも低高温状態におかれた場合には、
第3図の破線で示すように、その径が小さくなる。形状
記憶合金としては、例えばニッケルとチタンの合金であ
るニチノール等が使用できる。
In addition, the cap stopper 4 is made of shape memory alloy.
It is formed into a ring shape having a cut 13 in a part. Then, at room temperature, as shown in FIG. 3, the groove is memorized so that its diameter is large enough to span the inside of the inner surface of the base 2 and the inside of the recess 12. It is stored in the recess 12. In addition, when the cap stopper 4 is placed in a high temperature state lower than room temperature,
As shown by the broken line in FIG. 3, its diameter becomes smaller. As the shape memory alloy, for example, Nitinol, which is an alloy of nickel and titanium, can be used.

また、第2図のように、上記キャップ3を上記Oリング
5上に密着させてベース2に装着すると、該Oリング5
が上記ベース2とキャップ3の間に介在して、ベース2
内部の気密状態が常時保持される。
Further, as shown in FIG. 2, when the cap 3 is attached to the base 2 with the O-ring 5 in close contact with the
is interposed between the base 2 and the cap 3, and the base 2
The interior is kept airtight at all times.

このパッケージを開封するときは、キャップストッパー
4を加熱または冷却することにより、その径が小さくな
り、該キャップストッパー4は、ベース2の溝10との
係合が解かれて、キャップ3の凹部12内に移動するの
で、キャップ3をベース2から容易に外すことが可能と
なる。この操作は何度でも繰り返すことができ、キャッ
プ3の着脱を容易に行なうことが可能である。
When opening this package, the diameter of the cap stopper 4 is reduced by heating or cooling, and the cap stopper 4 is disengaged from the groove 10 of the base 2 and the recess 12 of the cap 3 Since the cap 3 moves inward, the cap 3 can be easily removed from the base 2. This operation can be repeated any number of times, and the cap 3 can be easily attached and detached.

(発明の効果〉 以上説明したように本発明は、リング状のキャップスト
ッパーを形状記憶合金により形成して、常温よりも低高
温状態におかれた場合には径が小さくなるように構成し
、またベース内にOリングで、周囲側面に上記キャップ
ストッパーが嵌合する凹部を形成したキャップを上記O
リング上に密着させて、上記ベースの内部側面には、上
記キャップの凹部と向き合う溝を設け、上記キャップス
トッパーを、上記溝内と上記凹部内とにまたがるように
収納したから、キャップの着脱が可能な気密封止パッケ
ージを提供できる効果がある。
(Effects of the Invention) As explained above, the present invention is configured such that the ring-shaped cap stopper is formed of a shape memory alloy so that the diameter becomes smaller when the ring-shaped cap stopper is placed in a high temperature state lower than room temperature. In addition, an O-ring is used in the base to attach a cap that has a recess formed on the peripheral side surface into which the cap stopper fits.
The cap is placed in close contact with the ring, and a groove facing the recess of the cap is provided on the inner side surface of the base, and the cap stopper is stored so as to straddle the groove and the recess, so that the cap can be attached and removed. This has the effect of providing a hermetically sealed package.

【図面の簡単な説明】 第1図は、本発明のパッケージのキャップを外した状態
の断面図、第2図は、そのキャップを装着した状態の断
面図、第3図は、キャップストッパーの平面図、第4図
は、従来の半導体集積回路用パッケージの断面図である
。 l:チップ  2:ベース  3:キャップ4:キャッ
プストッパー   5:Oリング8:段部lO:溝  
   12:凹部第 図
[Brief Description of the Drawings] Fig. 1 is a sectional view of the package of the present invention with the cap removed, Fig. 2 is a sectional view of the package with the cap attached, and Fig. 3 is a plan view of the cap stopper. FIG. 4 is a cross-sectional view of a conventional semiconductor integrated circuit package. l: Chip 2: Base 3: Cap 4: Cap stopper 5: O-ring 8: Step lO: Groove
12: Recess diagram

Claims (1)

【特許請求の範囲】[Claims] パッケージに搭載するチップを内部に配設したベースと
、ベースを封止するために該ベースに装着するキャップ
とからなる半導体集積回路用パッケージにおいて、リン
グ状のキャップストッパーを形状記憶合金により形成し
て、常温よりも低高温状態におかれた場合には径が小さ
くなるように構成し、またベース内にOリングを設置し
て、周囲側面に上記キャップストッパーが嵌合する凹部
を形成したキャップを上記Oリング上に密着させて、該
Oリングが上記ベースと上記キャップの間に介在するよ
うにし、上記ベースの内部側面には、上記キャップの凹
部と向き合う溝を設け、上記キャップストッパーを、上
記溝内と上記凹部内とにまたがるように収納したことを
特徴とする半導体集積回路用パッケージ。
In a semiconductor integrated circuit package consisting of a base in which a chip to be mounted on the package is arranged and a cap attached to the base to seal the base, a ring-shaped cap stopper is formed of a shape memory alloy. The cap is constructed so that its diameter becomes smaller when the cap is placed in a high temperature condition lower than room temperature, and an O-ring is installed in the base, and a concave portion is formed on the peripheral side surface into which the cap stopper fits. The O-ring is placed in close contact with the O-ring so that the O-ring is interposed between the base and the cap, a groove is provided on the inner side of the base facing the recess of the cap, and the cap stopper is placed between the base and the cap. A package for a semiconductor integrated circuit, characterized in that the package is housed so as to straddle the groove and the recess.
JP17868589A 1989-07-11 1989-07-11 Package for semiconductor integrated circuit Pending JPH0342858A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17868589A JPH0342858A (en) 1989-07-11 1989-07-11 Package for semiconductor integrated circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17868589A JPH0342858A (en) 1989-07-11 1989-07-11 Package for semiconductor integrated circuit

Publications (1)

Publication Number Publication Date
JPH0342858A true JPH0342858A (en) 1991-02-25

Family

ID=16052759

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17868589A Pending JPH0342858A (en) 1989-07-11 1989-07-11 Package for semiconductor integrated circuit

Country Status (1)

Country Link
JP (1) JPH0342858A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6991969B2 (en) * 2003-02-19 2006-01-31 Octavian Scientific, Inc. Methods and apparatus for addition of electrical conductors to previously fabricated device
US9052355B2 (en) 2008-03-13 2015-06-09 Translarity, Inc. Wafer prober integrated with full-wafer contactor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6991969B2 (en) * 2003-02-19 2006-01-31 Octavian Scientific, Inc. Methods and apparatus for addition of electrical conductors to previously fabricated device
US9052355B2 (en) 2008-03-13 2015-06-09 Translarity, Inc. Wafer prober integrated with full-wafer contactor
US9612278B2 (en) 2008-03-13 2017-04-04 Translarity, Inc. Wafer prober integrated with full-wafer contacter

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