JPS59194458A - Cassette case for semiconductor device - Google Patents

Cassette case for semiconductor device

Info

Publication number
JPS59194458A
JPS59194458A JP6878383A JP6878383A JPS59194458A JP S59194458 A JPS59194458 A JP S59194458A JP 6878383 A JP6878383 A JP 6878383A JP 6878383 A JP6878383 A JP 6878383A JP S59194458 A JPS59194458 A JP S59194458A
Authority
JP
Japan
Prior art keywords
cassette case
chip
case
motherboard
cassette
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
JP6878383A
Other languages
Japanese (ja)
Inventor
Fumikiyo Chiba
千葉 文清
Kozo Komatsu
小松 耕三
Kazutomo Takahashi
高橋 一智
Yuichi Ishikawa
友一 石川
Kazuyoshi Matsuo
松尾 和義
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP6878383A priority Critical patent/JPS59194458A/en
Publication of JPS59194458A publication Critical patent/JPS59194458A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40Picture signal circuits
    • H04N1/401Compensating positionally unequal response of the pick-up or reproducing head
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/32Holders for supporting the complete device in operation, i.e. detachable fixtures
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/47Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/4805Shape
    • H01L2224/4809Loop shape
    • H01L2224/48091Arched
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/73Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
    • H01L2224/732Location after the connecting process
    • H01L2224/73251Location after the connecting process on different surfaces
    • H01L2224/73265Layer and wire connectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Casings For Electric Apparatus (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

PURPOSE:To improve the reliability of a produce by providing heat sink means in a cassette case which contains a mother board, thereby preventing the erroneous operation and the deterioration of an IC due to heat generation. CONSTITUTION:One 2-1, 2-2 of the peripheral edges of an upper member 1-1 and a lower member 1-2 which form a cassette case 1 is opened, and notches 3, 3 are formed at the other periphery of the member 1-2. When the case 1 is associated, the open end for connecting the connection terminal of a mother board 5 and an external connector is formed of the opened peripheral edges 2-1, 2-2, and the notches 3, 3 become holes for externally exhausting the heat in the case 1. The terminal 7 connected to the external connector is provided at the end of the board 6, and IC chips 8, 8 are placed in a chip-on-board type on a substrate.

Description

【発明の詳細な説明】 技術分野 本発明は、ビデオテレビゲーム装置、その他の電子装置
において用いられ、ゲームプログラムやデータなどの情
報を記憶しているIC(SSI、MSI、LSIなどの
集積回路)を有し、目的に応じて取り換えることができ
るようになっている半導体装置カセットのカセットケー
スに関するものである。
Detailed Description of the Invention Technical Field The present invention relates to an IC (integrated circuit such as SSI, MSI, or LSI) that is used in a video television game device or other electronic device and stores information such as a game program or data. The present invention relates to a cassette case for a semiconductor device cassette, which has a cassette case that can be replaced depending on the purpose.

従来技術 ROM (リードオンリーメモリ)などのICを収納し
ている半導体装置カセットとしては、D IL (Du
al In−Line Package、:)方式で実
装されたICをマザーボードに搭載し、カセットケース
内に収納したものが知られている。マザーボードとは、
外部コネクタとの接続端子を備、えたプリント配線基板
のことである。
Conventional technology DIL (Du
It is known that an IC mounted using the Al In-Line Package (:) method is mounted on a motherboard and housed in a cassette case. What is a motherboard?
A printed wiring board equipped with connection terminals for external connectors.

ところで、この従来の半導体装置カセットで使用されて
いるカセットケースは、収納されているマザーボード接
続端子が外部コネクタに接続されるための開口端を除く
と、原則として密閉構造であり、搭載されているICや
その他の電子部品から発生する熱の放出手段については
配慮がなされていない。そのため、マザーボードの基板
の周囲に蓄積される熱により、ICが誤動作を起したり
、あるいは基板のメッキ部や半田部分の劣化か促進され
る問題がある。
By the way, the cassette case used in this conventional semiconductor device cassette is, in principle, of a sealed structure, except for the open end for connecting the housed motherboard connection terminal to an external connector. No consideration is given to means for dissipating heat generated from ICs and other electronic components. Therefore, there is a problem that the heat accumulated around the substrate of the motherboard may cause the IC to malfunction or accelerate deterioration of the plated portions or soldered portions of the substrate.

一方、本発明者らは、ICチップをマサ−ホードに固着
し、そのマザーボード上の配線パターンとの間に結線を
施した後に樹脂封止する、所謂チップ・オン・ボード(
以下CO’Bと称す)方式によりICチップを搭載した
マザーボードをカセットケースに収納した半導体装置カ
セットを別途提案している。そして、この方式では、従
来の如くDIL実装されたICを搭載した場合に比べて
蓄熱しやすい問題があるため、放熱に関しても一層留意
しなくてはならない。
On the other hand, the present inventors have developed a so-called chip-on-board (chip-on-board) method in which an IC chip is fixed to a motherboard, connected to the wiring pattern on the motherboard, and then sealed with resin.
We have separately proposed a semiconductor device cassette in which a motherboard equipped with an IC chip is housed in a cassette case using the CO'B (hereinafter referred to as CO'B) method. In this method, there is a problem in that heat is more likely to accumulate than in the conventional case where a DIL-mounted IC is mounted, so more attention must be paid to heat dissipation.

目的 本発明は、特にCOB方式によりICチップを搭載して
いるマザーボードを収納する半導体装置カセットにおい
て、発熱によるICの誤動作や劣化を防止して製品の信
頼性を向上させるカセットケースを提供することを目的
とするものである。
Purpose The present invention aims to provide a cassette case that prevents IC malfunction and deterioration due to heat generation and improves product reliability, especially in a semiconductor device cassette that houses a motherboard on which an IC chip is mounted using the COB method. This is the purpose.

構成 本発明は、マザーボードを収納しているカセットケース
に放熱手段を設けることにより、上記目的を達成せんと
するものである。
Structure The present invention aims to achieve the above object by providing a heat dissipation means in a cassette case housing a motherboard.

放熱手段としては、例えばカセットケースに穴やスリッ
トを設け、その穴などから熱を自然に逃がしたり強制的
に冷却したり、あるいはカセットケースの一部又は全部
を金属製にして熱伝導により熱を外部へ放出させたりす
るなど、種々の手段を採用することができる。
Heat dissipation means include, for example, providing holes or slits in the cassette case to allow heat to escape naturally or forcibly through the holes, or making part or all of the cassette case made of metal to dissipate heat by thermal conduction. Various means can be adopted, such as releasing it to the outside.

以下、本発明の実施例について説明する。Examples of the present invention will be described below.

第1図において、1−1と1−2は一実施例のカセット
ケース1を構成する上部部材、と下部部材であり、各部
材1−1.1−2の周縁の一方2−1.2−2は開いて
おり、下部部材1−2の他の周縁には切欠き3.3が設
けられてC)る。カセットケース1が組み立てられたと
き、開いた周縁2−1と2−2により、収納されている
マザーボード接続端子と外部コネクタとの接続のための
開口端を構成し、切欠き3.3はカセットケース1内の
熱を外部へ放出するための穴となる。ケース下部部材1
−2に設けられたピン4と、ケース下部部材1−2及び
上部部材1−1に設けられた突条片5.5は、収納され
るマザーボードを位置決めし固定するためのものである
。6はこのカセットケース1内に収納されるプリント配
線基板にてなるマザーボードで、その端部に外部コネク
タと接続される接続端子7を有し、基板上にはC,OB
方式によりICチップ8.8を搭載している。マザーボ
ードは、その穴9にケース下部部材1−2のピン4が挿
入され、ケース上部部材1−1及び下部部材の突条片5
.5に挾持されてカセットケース1内で位置決めされ固
定される。
In FIG. 1, 1-1 and 1-2 are an upper member and a lower member that constitute the cassette case 1 of one embodiment, and one of the peripheral edges of each member 1-1.1-2 is 2-1.2. -2 is open, and the other peripheral edge of the lower member 1-2 is provided with a notch 3.3C). When the cassette case 1 is assembled, the open edges 2-1 and 2-2 form an open end for connecting the housed motherboard connection terminals and external connectors, and the notch 3.3 This hole serves as a hole for discharging the heat inside the case 1 to the outside. Case lower part 1
The pin 4 provided on the case lower member 1-2 and the protruding strips 5.5 provided on the case lower member 1-2 and the upper member 1-1 are for positioning and fixing the motherboard to be housed. Reference numeral 6 denotes a motherboard made of a printed wiring board housed in this cassette case 1, and has a connecting terminal 7 connected to an external connector at the end thereof, and C, OB, etc. on the board.
It is equipped with an IC chip 8.8 depending on the method. The pins 4 of the case lower member 1-2 are inserted into the holes 9 of the motherboard, and the protruding strips 5 of the case upper member 1-1 and the lower member are inserted.
.. 5, and is positioned and fixed within the cassette case 1.

尚、マザーボード6上には搭載されているIC8の種類
や保持内容を表示するための表示部10が設けられ、カ
セット組立て後はカセット上部部材1−1の穴11を通
してこの表示部10を電気的又は光学的に検出しうるよ
うになっている。この表示部10は図のように複数個の
点による2値情報の組み合わせで構成してもよく、ある
いは文字により直接表示してもよい。しかし、特にこの
ような表示部は設けなくてもよい。また、図ではマザー
ボード6上にはICチップ8.8のみが搭載されたもの
が示されているが、他に抵抗やコンデンサなどの個別部
品が搭載されていてもよい。
A display section 10 is provided on the motherboard 6 to display the type and content of the IC 8 mounted on it, and after the cassette is assembled, the display section 10 can be electrically connected through the hole 11 of the cassette upper member 1-1. Or it can be detected optically. The display section 10 may be configured with a combination of binary information using a plurality of points as shown in the figure, or may be directly displayed using characters. However, it is not necessary to provide such a display section. Furthermore, although the figure shows only the IC chip 8.8 mounted on the motherboard 6, other individual components such as resistors and capacitors may also be mounted thereon.

本実施例のカセットケース1を用いた半導体装置カセッ
トをゲーム装置などの装置のコネクタに接続して動作さ
せれば、ICチップ8.8やその他の電子部品から発生
した熱は、空気の流れとともに3.3からカセットケー
ス外部へ放出される。
If the semiconductor device cassette using the cassette case 1 of this embodiment is connected to the connector of a device such as a game device and operated, the heat generated from the IC chip 8.8 and other electronic components will be removed along with the air flow. 3.3 is released to the outside of the cassette case.

ここで、ICチップ8をマザーボード6上に搭載したC
OB方式の一例を第2図に示す。ICチップ8はその裏
面において接着剤20によりマザーボード6の基板上に
固着されている。接着剤としては非導電性のものでもよ
いが、銀ペーストや金ペーストの如く、導電性、高熱伝
導性のものを用いるのが好ましい。ICチップ8の裏面
から電圧を印加したり、熱を放出させたりできるからで
ある。IC’チップ8のパッド21と基板6上の配線ハ
ターン22とが金線23のワイヤボンディングにより接
続され、ICチップ8とワイヤ23はエポキシ系樹脂や
シリコン系樹脂などの樹脂24により封止されている。
Here, a C with an IC chip 8 mounted on the motherboard 6
An example of the OB method is shown in FIG. The IC chip 8 is fixed to the substrate of the motherboard 6 with an adhesive 20 on its back surface. Although a non-conductive adhesive may be used as the adhesive, it is preferable to use an electrically conductive and highly thermally conductive adhesive such as silver paste or gold paste. This is because voltage can be applied and heat can be released from the back surface of the IC chip 8. The pad 21 of the IC' chip 8 and the wiring pattern 22 on the substrate 6 are connected by wire bonding with a gold wire 23, and the IC chip 8 and the wire 23 are sealed with a resin 24 such as epoxy resin or silicon resin. There is.

第3囚人は本発明の他の実施例としてのカセットケース
30を表わす。その両側部に放熱用の穴31−1.31
−2が開けられ、図の下方向が開放されている。
The third prisoner represents a cassette case 30 as another embodiment of the present invention. Holes 31-1.31 for heat radiation on both sides
-2 is opened, and the bottom side of the figure is open.

本実施例にマザーボード6を収納して動作させる場合に
は、第3図fB)の断面図に示されるように、一方の穴
31−1から他方の穴31−2に向って外部ファンによ
り空気を強制的に通ずることにより、ICチップ8が強
制的に空冷される。
When the motherboard 6 is housed and operated in this embodiment, as shown in the cross-sectional view of FIG. By forcibly passing through the air, the IC chip 8 is forcibly air-cooled.

第4図(5)は本発明の更に他の実施例としてのカセッ
トケース40を表わす。このカセットケース40も図の
下方向が開放されており、両側部には斜下方を向いたス
リット41−1.41−2が設けられている。
FIG. 4(5) shows a cassette case 40 as yet another embodiment of the present invention. This cassette case 40 is also open at the bottom in the figure, and slits 41-1 and 41-2 facing diagonally downward are provided on both sides.

本実施例では、動作時、第4回出)の断面図に示される
ように、矢印方向に空気が強制的に通されてICチップ
8その他の電子部品が冷却される。
In this embodiment, during operation, as shown in the cross-sectional view in the fourth illustration, air is forced to pass in the direction of the arrow to cool the IC chip 8 and other electronic components.

また、この放熱用スリット41−1.41−2はカセッ
トをコネクタから図の上方向に引き抜く場合の滑り止め
としても利用できる。
The heat dissipation slits 41-1 and 41-2 can also be used to prevent slipping when the cassette is pulled out from the connector upward in the figure.

本発明における放熱手段としては、上記実施例のように
カセットケースに穴〜を設けるほかに、カセットケース
の一部又は全部を金属製として、熱伝導効果により放熱
するようにしてもよく、更には金属製カセットケースに
上記実施例のような放熱用穴を設けてもよい。
As the heat dissipation means in the present invention, in addition to providing holes in the cassette case as in the above embodiment, a part or all of the cassette case may be made of metal to dissipate heat by heat conduction effect. The metal cassette case may be provided with heat dissipation holes as in the above embodiment.

なお、マザーホード6を本発明のカセットケースに収納
するに際しては、第5図ないし第7図に示されるように
、マザーボード6の接続端子7が設けられている側の先
端50が、カセットケース51の開口端52より内側に
位置するように位置決めし、固定すれば、その開口端5
2を通して指先などの外部物体と接触することが防止さ
れ、したがって汚染や静電破壊が防止される。さらにま
た、第6図や第7図の如く、マサ−ボードの接続端子7
の先端の配列を外部コネクタとの距離に関して不揃いに
しておけは、コネクタとの着脱に要する力を軽減させる
ことができる。第7図のマザーボード6の先端の凹凸形
状は、コネクタとの位置決めにも利用することかできる
。また、マサ−ホード6の先端に面取りを施して先端の
断面形状に傾斜を設け、コネクタとの着脱を更に容易に
することもできる。
In addition, when storing the motherboard 6 in the cassette case of the present invention, as shown in FIGS. If the opening end 52 is positioned inward and fixed, the opening end 5
2 is prevented from coming into contact with external objects such as fingertips, thus preventing contamination and electrostatic damage. Furthermore, as shown in FIGS. 6 and 7, the connection terminal 7 of the motherboard
By arranging the tips of the connectors irregularly with respect to the distance from the external connector, the force required for attaching and detaching the connectors to and from the connector can be reduced. The uneven shape of the tip of the motherboard 6 shown in FIG. 7 can also be used for positioning with the connector. Further, the tip of the masser hoard 6 can be chamfered to provide a slope in the cross-sectional shape of the tip to further facilitate attachment and detachment with the connector.

効果 以上のように、本発明のカセットケースては、穴などの
放熱手段を設けたので、COB方式により搭載されたI
Cチップを収納した場合にも、発熱によりICか誤動作
を起したり、ICチップや半田部などに劣化を生じて製
品の寿命を短かくするなどの問題が生じなくなり、製品
の信頼性を高めることができる。また、高発熱部品を収
納することも可能になる。
Effects As described above, the cassette case of the present invention is provided with heat dissipation means such as holes, so that the I/O mounted by the COB method can be
Even when a C chip is stored, problems such as malfunction of the IC due to heat generation or deterioration of the IC chip or solder parts, which shortens the product's lifespan, will not occur, increasing the reliability of the product. be able to. It also becomes possible to store high heat generation components.

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

第1図は本発明の一実施例のカセットケースを用いた半
導体装置カセットを示す分解斜視図、第2図はICチッ
プを搭載するCOB方式を説明する断面図、第3図(5
)及びfBlは本発明の他の実施例を示す斜視図及び断
面図、第4図四及びの)は更に他の実施例を示す斜視図
及び断面図、第5図ないし第7図はマザーボードの好ま
しい収納状態を示す一部切欠き平面図である。 1.30,40.51・・・カセットケース、1−1・
・・カセットケースの上部部材、1−2・・・カセット
ケースの下部部材、3+31−1.31−2..4l−
1t41−2・・・ カセットケースに設けられた放熱
用穴、6・・・マサ−ボード、8・・・ICチップ。 特許出願人   株式会社リコー 代理人 弁理士 青白 葆他2名
FIG. 1 is an exploded perspective view showing a semiconductor device cassette using a cassette case according to an embodiment of the present invention, FIG. 2 is a sectional view illustrating a COB method for mounting an IC chip, and FIG.
) and fBl are perspective views and sectional views showing other embodiments of the present invention, FIGS. 4 and 4) are perspective views and sectional views showing still other embodiments, and FIGS. FIG. 3 is a partially cutaway plan view showing a preferred storage state. 1.30, 40.51...Cassette case, 1-1.
... Upper member of the cassette case, 1-2... Lower member of the cassette case, 3+31-1.31-2. .. 4l-
1t41-2... Heat dissipation hole provided in the cassette case, 6... Mother board, 8... IC chip. Patent applicant: Ricoh Co., Ltd. Agent: Patent attorney: Aobai Ao and 2 others

Claims (1)

【特許請求の範囲】[Claims] (1)ICチップをチップ・オン・ボード方式で搭載し
たマザーホードを収納するカセットケースであって、前
記ICチップが発生する熱を放出する手段を備えている
ことを特徴とする半導体装置カセット。
(1) A semiconductor device cassette that houses a motherboard on which an IC chip is mounted in a chip-on-board manner, the semiconductor device cassette comprising means for discharging heat generated by the IC chip.
JP6878383A 1983-04-18 1983-04-18 Cassette case for semiconductor device Pending JPS59194458A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6878383A JPS59194458A (en) 1983-04-18 1983-04-18 Cassette case for semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6878383A JPS59194458A (en) 1983-04-18 1983-04-18 Cassette case for semiconductor device

Publications (1)

Publication Number Publication Date
JPS59194458A true JPS59194458A (en) 1984-11-05

Family

ID=13383670

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6878383A Pending JPS59194458A (en) 1983-04-18 1983-04-18 Cassette case for semiconductor device

Country Status (1)

Country Link
JP (1) JPS59194458A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6771509B2 (en) 1992-05-20 2004-08-03 Seiko Epson Corporation Cartridge for electronic devices
US7804688B2 (en) 1992-05-20 2010-09-28 Seiko Epson Corporation Apparatus including processor
US8800337B2 (en) 2011-08-29 2014-08-12 Ricoh Company, Ltd. Lead pin correction device and lead pin correction method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6771509B2 (en) 1992-05-20 2004-08-03 Seiko Epson Corporation Cartridge for electronic devices
US6845014B2 (en) 1992-05-20 2005-01-18 Seiko Epson Corporation Cartridge for electronic devices
US7035108B2 (en) 1992-05-20 2006-04-25 Seiko Epson Corporation Information processing device
US7345883B2 (en) 1992-05-20 2008-03-18 Seiko Epson Corporation Processing device
US7359202B2 (en) 1992-05-20 2008-04-15 Seiko Epson Corporation Printer apparatus
US7583505B2 (en) 1992-05-20 2009-09-01 Seiko Epson Corporation Processor apparatus
US7804688B2 (en) 1992-05-20 2010-09-28 Seiko Epson Corporation Apparatus including processor
US8800337B2 (en) 2011-08-29 2014-08-12 Ricoh Company, Ltd. Lead pin correction device and lead pin correction method

Similar Documents

Publication Publication Date Title
US5969947A (en) Integral design features for heatsink attach for electronic packages
US5157480A (en) Semiconductor device having dual electrical contact sites
US6501103B1 (en) Light emitting diode assembly with low thermal resistance
JP3109479B2 (en) Heat radiator and memory module equipped with heat radiator
US5311395A (en) Surface mount heat sink
US5506756A (en) Tape BGA package die-up/die down
US5513070A (en) Dissipation of heat through keyboard using a heat pipe
US6054759A (en) Semiconductor chip and package with heat dissipation
KR101257143B1 (en) An apparatus, a method and a system for lateral force countering load mechanism for lga sockets
JPH08222671A (en) Cooler for circuit module
US7161238B2 (en) Structural reinforcement for electronic substrate
US5671121A (en) Kangaroo multi-package interconnection concept
US5978224A (en) Quad flat pack integrated circuit package
US5488539A (en) Protecting cot packaged ICs during wave solder operations
US20020031858A1 (en) Semiconductor device comprising a socket and method for forming same
JPS59194458A (en) Cassette case for semiconductor device
JP3166490B2 (en) BGA type semiconductor device
JP2817712B2 (en) Semiconductor device and mounting method thereof
JPH11220055A (en) Bga-type semiconductor device, and stiffener used for the device
JP3348485B2 (en) Semiconductor devices and mounting boards
US6498390B1 (en) Integrated circuit package that includes a thermally conductive tape which attaches a thermal element to a plastic housing
US6364669B1 (en) Spring contact for providing high current power to an integrated circuit
KR960019683A (en) Semiconductor devices
JPH09283664A (en) Circuit module cooling device
KR19980056452U (en) Heat dissipation device for high micro integrated circuit