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JPH0548000A - 半導体装置 - Google Patents

半導体装置

Info

Publication number
JPH0548000A
JPH0548000A JP3202089A JP20208991A JPH0548000A JP H0548000 A JPH0548000 A JP H0548000A JP 3202089 A JP3202089 A JP 3202089A JP 20208991 A JP20208991 A JP 20208991A JP H0548000 A JPH0548000 A JP H0548000A
Authority
JP
Japan
Prior art keywords
semiconductor device
substrate
base
semiconductor element
electrode
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.)
Withdrawn
Application number
JP3202089A
Other languages
English (en)
Inventor
Masataka Mizukoshi
正孝 水越
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP3202089A priority Critical patent/JPH0548000A/ja
Priority to US07/916,264 priority patent/US5297006A/en
Priority to KR1019920014319A priority patent/KR930005177A/ko
Priority to EP92113849A priority patent/EP0528367A1/en
Publication of JPH0548000A publication Critical patent/JPH0548000A/ja
Withdrawn legal-status Critical Current

Links

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    • HELECTRICITY
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    • H01L25/04Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
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Abstract

(57)【要約】 【目的】 パッケージ内に複数の半導体素子を内蔵して
なるマルチチップ型半導体装置に関し、一層の高密度実
装化と高出力化を可能にするマルチチップ型半導体装置
の提供を目的とする。 【構成】 両面にそれぞれ半導体素子14、15が搭載され
た基板2をパッケージのベース3に実装し、基板2上の
電極21とベース3上の電極31をワイヤー4で接続してな
る半導体装置であって、少なくとも下面に搭載される半
導体素子14がフェイスダウン方式によって基板2に搭載
され、且つ、半導体素子14の背面が熱伝導性の接合材5
を介してベース3に接合されてなるように構成する。

Description

【発明の詳細な説明】
【0001】
【産業上の利用分野】本発明はパッケージ内に複数の半
導体素子を内蔵してなるマルチチップ型半導体装置に係
り、特にマルチチップモジュールの一層の高密度実装化
と高出力化を可能にする構造に関する。
【0002】パッケージ内に高出力半導体素子と低出力
の半導体素子を内蔵してなるマルチチップ型半導体装置
において、フリップチッブ方式やTAB方式等のフェイ
スダウン方式によって半導体素子を基板に搭載し一層の
高密度実装化を図っている。
【0003】しかし従来は高出力半導体素子の熱を逃が
す適当な手段が無くパッケージが大型化する或いは構造
が複雑になる等の問題があった。そこで一層の高密度実
装化と高出力化を可能にするマルチチップ型半導体装置
の開発が要望されている。
【0004】
【従来の技術】図5は従来の半導体装置の概要を示す断
面図である。ハイブリッド集積回路では図5(a) に示す
如く基板11の両面に各種の半導体素子12を搭載し、基板
11上の図示省略された電極と半導体素子12上の図示省略
された電極の間をボンディングされたワイヤー13で接続
している。
【0005】しかし電極間をボンディングされたワイヤ
ーで接続するハイブリッド集積回路は高密度実装化に限
度があり、最近はフリップチッブ方式やTAB方式等の
フェイスダウン方式によって半導体素子を基板に搭載す
る方式に移行しつつある。
【0006】即ち、従来のマルチチップ型半導体装置は
図5(b) に示す如く高出力半導体素子14や低出力半導体
素子15を、平面的に配置してフェイスダウン方式によっ
て半田バンプ16を介し多層化された基板17上の図示省略
された電極に接続している。
【0007】なおフェイスダウン方式によって基板17上
に搭載された高出力の半導体素子14は基板17を介して放
熱することができず、例えば半導体素子14の背面に接合
された窒化アルミ (AlN)等からなる放熱板18を介して
外部に放出している。
【0008】
【発明が解決しようとする課題】しかし、従来のマルチ
チップ型半導体装置は半導体素子を平面的に配置してい
るため高密度実装化に限度があり、半導体素子の背面に
放熱板を接合する構造はワイヤーボンディングされる半
導体素子を混載する場合は利用できない。その場合は半
導体素子と放熱板の間に熱伝導部品を介在させる必要が
あり構造が複雑になるという問題があった。
【0009】本発明の目的は一層の高密度実装化と高出
力化を可能にするマルチチップ型半導体装置を提供する
ことにある。
【0010】
【課題を解決するための手段】図1は本発明になる半導
体装置の概要を示す断面図である。なお全図を通し同じ
対象物は同一記号で表している。
【0011】上記課題は両面にそれぞれ半導体素子14、
15が搭載された基板2をパッケージのベース3に実装
し、基板2上の電極21とベース3上の電極31をワイヤー
4で接続してなる半導体装置であって、少なくとも下面
に搭載される半導体素子14がフェイスダウン方式によっ
て基板2に搭載され、且つ、半導体素子14の背面が熱伝
導性の接合材5を介してベース3に接合されてなる本発
明の半導体装置によって達成される。
【0012】
【作用】図1において両面にそれぞれ半導体素子が搭載
された基板をパッケージのベースに実装し、基板上の電
極とベース上の電極をワイヤーで接続してなる半導体装
置であって、少なくとも下面に搭載される半導体素子が
フェイスダウン方式によって基板に搭載され、且つ、半
導体素子の背面が熱伝導性の接合材を介してベースに接
合されてなる本発明の半導体装置は、複数の半導体素子
を立体的に配置できるため半導体装置全体を小型化する
ことが可能である。
【0013】また高出力半導体素子の背面が熱伝導性の
接合材を介してベースに接合されているため、半導体素
子が発する熱をベースを介して外部に放出することが可
能になりパッケージの構造が簡略化される。即ち、一層
の高密度実装化と高出力化を可能にするマルチチップ型
半導体装置を実現することができる。
【0014】
【実施例】以下添付図により本発明の実施例について説
明する。図2は本発明になる半導体装置の他の実施例を
示す断面図、図3は本発明になる半導体装置の別の実施
例を示す断面図、図4は本発明になる半導体装置の変形
例を示す断面図である。
【0015】図1において本発明になる半導体装置は多
層化された基板2がパッケージのベース3に実装されて
おり、基板2上の電極21とベース3上の電極31はボンデ
ィングされたワイヤー4によって接続されている。
【0016】基板2の下面には1乃至複数個の高出力の
半導体素子14がフェイスダウン方式によって半田バンプ
16を介して搭載され、半導体素子14の背面は熱伝導性の
接合材5を介して熱膨張率が半導体素子14に近似したベ
ース3に接合されている。
【0017】また基板2の上面には1乃至複数個の低出
力の半導体素子15がフェイスダウン方式によって半田バ
ンプ16を介して搭載され、比較的発熱量の小さい半導体
素子15および基板2の熱は熱伝導ペースト8を介してベ
ース3に伝えられている。
【0018】図2において本発明になる半導体装置の他
の実施例は基板2がパッケージのベース3に実装されて
おり、基板2上の電極21とベース3上の電極31はボンデ
ィングされたワイヤー4によって接続されている。
【0019】基板2の下面には1乃至複数個の高出力の
半導体素子14がフェイスダウン方式によって半田バンプ
16を介して搭載され、半導体素子14の背面は熱伝導性の
接合材5を介して熱膨張率が半導体素子14に近似したベ
ース3に接合されている。
【0020】また基板2の上面には1乃至複数個の低出
力の半導体素子15と抵抗やコンデンサ、コイル等の受動
部品6が搭載され、図示省略された半導体素子15上の電
極と基板2上の電極がボンディングされたワイヤー13に
よって接続されている。
【0021】低出力の半導体素子15や受動部品6は基板
2の上面に、高出力の半導体素子14は基板2の下面に搭
載されているため、ワイヤーボンディングされる半導体
素子を混載する場合も高出力の半導体素子14の背面にベ
ース3を容易に接合できる。
【0022】図3において本発明になる半導体装置の別
の実施例は基板2がパッケージのベース3に実装されて
おり、基板2上の電極21とベース3上の電極31はボンデ
ィングされたワイヤー4によって接続されている。
【0023】基板2の下面には1乃至複数個の高出力の
半導体素子14がフェイスダウン方式によって半田バンプ
16を介して搭載され、半導体素子14の背面は熱伝導性の
接合材5を介して熱膨張率が半導体素子14に近似したベ
ース3に接合されている。
【0024】また基板2の上面には1乃至複数個の低出
力の半導体素子15がフェイスダウン方式によって半田バ
ンプ16を介して搭載され、半導体装置の特性をモジュー
ル単位で試験するための複数の試験電極22が基板2上の
周縁部に設けられている。
【0025】このように両面にそれぞれ半導体素子が搭
載された基板をパッケージのベースに実装し、基板上の
電極とベース上の電極をワイヤーで接続してなる半導体
装置であって、少なくとも下面に搭載される半導体素子
がフェイスダウン方式によって基板に搭載され、且つ、
半導体素子の背面が熱伝導性の接合材を介してベースに
接合されてなる本発明の半導体装置は、複数の半導体素
子を立体的に配置できるため半導体装置全体を小型化す
ることが可能である。
【0026】また高出力半導体素子の背面が熱伝導性の
接合材を介してベースに接合されているため、半導体素
子が発する熱をベースを介して外部に放出することが可
能になり構造が簡略化される。即ち、一層の高密度実装
化と高出力化を可能にするマルチチップ型半導体装置を
実現することができる。
【0027】更に図4において本発明になる半導体装置
の変形例はベース3に接合されたキャップ7を有し、熱
伝導ペースト8を介してベース3に実装された基板2と
キャップ7の間に金属からなる熱伝導部品9を介在させ
ている。
【0028】例えば熱伝導性に優れた金属で形成された
U字状板ばねからなる熱伝導部品9は一端がキャップ7
に半田付けされており、キャップ7をベース3に接合し
たときに熱伝導部品9の他端はキャップ7と接触を保ち
ながら横に移動する。
【0029】熱伝導部品9の中間に位置する円弧状底面
は基板2に押し付けられるように構成されており、基板
2の熱は熱伝導ペースト8を介してベース3に伝えられ
ると共に熱伝導部品9を介してキャップ7に伝えられ
る。
【0030】即ち、高出力半導体素子14の背面を熱伝導
性の接合材5によってベース3に接合すると共に、基板
2の熱をベース3とキャップ7に伝えることによってパ
ッケージの放熱効果が向上し更に高出力化を図ることが
できる。
【0031】
【発明の効果】上述の如く本発明によれば一層の高密度
実装化と高出力化を可能にするマルチチップ型半導体装
置を提供することができる。
【図面の簡単な説明】
【図1】 本発明になる半導体装置の概要を示す断面図
である。
【図2】 本発明になる半導体装置の他の実施例を示す
断面図である。
【図3】 本発明になる半導体装置の別の実施例を示す
断面図である。
【図4】 本発明になる半導体装置の変形例を示す断面
図である。
【図5】 従来の半導体装置の概要を示す断面図であ
る。
【符号の説明】
2 基板 3 ベース 4 ワイヤー 5 接合材 6 受動部品 7 キャップ 8 熱伝導ペースト 9 熱伝導部品 13 ワイヤー 14、15 半導体素子 16 半田バンプ 21、31 電極 22 試験電極

Claims (6)

    【特許請求の範囲】
  1. 【請求項1】 両面にそれぞれ半導体素子(14,15) が搭
    載された基板(2) をパッケージのベース(3) に実装し、
    該基板(2) 上の電極(21)と該ベース(3) 上の電極(31)を
    ワイヤー(4) で接続してなる半導体装置であって、 少なくとも下面に搭載される半導体素子(14)がフェイス
    ダウン方式によって該基板(2) に搭載され、且つ、該半
    導体素子(14)の背面が熱伝導性の接合材(5) を介して該
    ベース(3) に接合されてなることを特徴とする半導体装
    置。
  2. 【請求項2】 請求項1に記載された半導体装置におい
    て低出力の半導体素子(15)が基板(2) の上面に搭載さ
    れ、高出力の半導体素子(14)が該基板(2) の下面に搭載
    されてなることを特徴とする半導体装置。
  3. 【請求項3】 請求項1に記載された半導体装置におい
    て半導体素子(15)と受動部品(6) が基板(2) の上面に搭
    載されてなることを特徴とする半導体装置。
  4. 【請求項4】 請求項1に記載された半導体装置におい
    て基板(2) およびベース(3) を構成する素材が、半導体
    素子(14,15) の熱膨張率に近似した熱膨張率を有するこ
    とを特徴とする半導体装置。
  5. 【請求項5】 請求項1に記載された半導体装置におい
    てパッケージのベース(3) またはキャップ(7) と基板
    (2) の間に、絶縁性の熱伝導ペースト(8) または金属製
    の熱伝導部品(9) を介在させてなることを特徴とする半
    導体装置。
  6. 【請求項6】 請求項1に記載された半導体装置におい
    て基板(2) 上に外部接続用の電極(21)と試験用の電極(2
    2)が形成され、ベース(3) への実装に先立って該基板
    (2) 上に形成された回路の特性を、該電極(22)を介して
    試験可能なように構成されてなることを特徴とする半導
    体装置。
JP3202089A 1991-08-13 1991-08-13 半導体装置 Withdrawn JPH0548000A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP3202089A JPH0548000A (ja) 1991-08-13 1991-08-13 半導体装置
US07/916,264 US5297006A (en) 1991-08-13 1992-07-21 Three-dimensional multi-chip module
KR1019920014319A KR930005177A (ko) 1991-08-13 1992-08-10 3차원 멀티칩 모듈형 집적회로
EP92113849A EP0528367A1 (en) 1991-08-13 1992-08-13 Three-dimensional multi-chip module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3202089A JPH0548000A (ja) 1991-08-13 1991-08-13 半導体装置

Publications (1)

Publication Number Publication Date
JPH0548000A true JPH0548000A (ja) 1993-02-26

Family

ID=16451786

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3202089A Withdrawn JPH0548000A (ja) 1991-08-13 1991-08-13 半導体装置

Country Status (4)

Country Link
US (1) US5297006A (ja)
EP (1) EP0528367A1 (ja)
JP (1) JPH0548000A (ja)
KR (1) KR930005177A (ja)

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Also Published As

Publication number Publication date
EP0528367A1 (en) 1993-02-24
US5297006A (en) 1994-03-22
KR930005177A (ko) 1993-03-23

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