JP6645134B2 - 半導体装置および半導体装置の製造方法 - Google Patents
半導体装置および半導体装置の製造方法 Download PDFInfo
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Description
図1、図2は、実施の形態1にかかる半導体装置のパッケージ組み立て構造の要部断面図である。図1は、後述する図5の切断線A−A’における断面図であり、図2は、後述する図5の切断線B−B’における断面図である。実施の形態1にかかる半導体装置のパッケージは、従来の半導体装置のパッケージと同様に、例えば、銅材で作られた放熱用金属ベース1、絶縁基板のおもて面および裏面に導電性板の積層した絶縁回路基板2(不図示)を有する。半導体装置のパッケージは、さらに、絶縁回路基板2に実装した半導体チップ3(不図示)、金属ベース1と絶縁回路基板2の裏面の導電性板の間、および絶縁回路基板2のおもて面の導電性板と半導体チップ3の間を接合した半田接合層4(不図示)、樹脂ケース5、樹脂ケース5の周壁部の端子取付穴5aに装着された外部端子6を有する。半導体装置のパッケージは、さらに、外部端子6のL形脚部6aと絶縁回路基板2の導電性板との間を接続したボンディングワイヤ7(不図示)および樹脂ケース5の内側に絶縁物で作られた額縁状の端子押え枠10を有する。なお、前記L形脚部6aとは、図1等に示すように、L型状の外部端子6の、樹脂ケース5の内側に突き出るように、樹脂ケース5の内部に設置される部分である。図1、図2では、従来の半導体装置のパッケージとの違いを明確にするため、放熱用の金属ベース1、樹脂ケース5、外部端子6および端子押え枠10のみが図示されている。また、金属ベース1の代わりに、絶縁回路基板2の裏面の導電性板を厚くする場合がある。その場合は、金属ベース1の代わりに、絶縁性回路基板であってもよい。
図4は、実施の形態1にかかる半導体装置のパッケージ組み立て手順の説明図である。組み立て手順は、まず、樹脂ケース5の周壁部に形成した端子取付穴5aのうち、所定の端子配置に対応した端子取付穴5aに対して、外部端子6を図示矢印(1)のように樹脂ケース5の底面側から差し込んで装着する。ここで、外部端子6をL形脚部が樹脂ケースの内側に突き出るように装着する。
図7は、実施の形態2にかかる半導体装置のパッケージ組み立て構造の要部断面図である。実施の形態2にかかる半導体装置のパッケージ組み立て構造が、実施の形態1にかかる半導体装置のパッケージ組み立て構造と異なるのは、端子押え枠10の構造である。
図8は、実施の形態2にかかる半導体装置のパッケージ組み立て手順の説明図である。組み立て手順は、まず、実施の形態1と同様に、外部端子6を装着する工程を行う。
2 絶縁回路基板
3 半導体チップ
4 半田接合層
5 樹脂ケース
5a 端子取付穴
6 外部端子
6a L形脚部
7 ボンディングワイヤ
10 端子押え枠
11、14 第1の隙間
12 第2の隙間
13 接触部分
15 接着剤
16、17 突起
18 外部端子と樹脂ケースの間にある隙間
19 L形脚部の先端
Claims (6)
- 周壁部に複数の端子取付穴が設けられた樹脂ケースと、
前記複数の端子取付穴のいずれかの端子取付穴に装着された、前記樹脂ケースの内側に突き出たL形脚部を有する外部端子と、
前記外部端子を所定の装着位置に支持する絶縁物製の端子押え枠と、
前記端子押え枠と接着剤で結合された、半導体チップを実装した絶縁回路基板を有する金属ベースと、
を備える半導体装置であって、
前記端子押え枠と前記L形脚部との間に第1の隙間が部分的に存在し、
前記端子押え枠と前記樹脂ケースの内側の面との間に第2の隙間が存在し、
前記第1の隙間と前記第2の隙間は連結し、
前記端子押え枠は、前記L形脚部の先端と接触し、前記第1の隙間の接着剤により、前記L形脚部と結合され、前記第2の隙間の接着剤により、前記樹脂ケースの内側の面と結合されることを特徴とする半導体装置。 - 前記第2の隙間は、前記金属ベースに近い箇所より前記外部端子に近い箇所が、前記樹脂ケースの内側の面との距離が大きいことを特徴とする請求項1に記載の半導体装置。
- 前記端子押え枠は、前記L形脚部と接触する突起を前記第1の隙間内に有することを特徴とする請求項1または2に記載の半導体装置。
- 前記複数の端子取付穴は、機種によって異なる端子配列に対応するよう設けられ、
前記外部端子は、前記機種に応じて、前記複数の端子取付穴のいずれかの端子取付穴に装着されることを特徴とする請求項1〜3のいずれか一つに記載の半導体装置。 - 周壁部に複数の端子取付穴が設けられた樹脂ケースと、
前記複数の端子取付穴のいずれかの端子取付穴に装着された、前記樹脂ケースの内側に突き出たL形脚部を有する外部端子と、
前記外部端子を所定の装着位置に支持する絶縁物製の端子押え枠と、
前記端子押え枠と接着剤で結合された、半導体チップを実装した絶縁回路基板を有する金属ベースと、
を備える半導体装置であって、
前記端子押え枠と前記L形脚部との間に第1の隙間が部分的に存在し、
前記端子押え枠と前記樹脂ケースの内側の面との間に第2の隙間が存在し、
前記端子押え枠は、前記L形脚部の先端と接触し、前記第1の隙間の接着剤により、前記L形脚部と結合され、前記第2の隙間の接着剤により、前記樹脂ケースの内側の面と結合され、
前記端子押え枠は、前記L形脚部の根元と接触し、前記第1の隙間と前記第2の隙間は分離されていることを特徴とする半導体装置。 - 周壁部に複数の端子取付穴が設けられた樹脂ケースと、L形脚部を有する外部端子と、前記外部端子を所定の装着位置に支持する絶縁物製の端子押え枠と、半導体チップを実装した絶縁回路基板を有する金属ベースと、を備え、前記端子押え枠と前記L形脚部との間に第1の隙間が部分的に存在し、前記端子押え枠と前記樹脂ケースの内側の面との間に第2の隙間が存在し、前記第1の隙間と前記第2の隙間が連結する半導体装置の製造方法であって、
前記外部端子の前記L形脚部を前記樹脂ケースの内側に突き出して、前記外部端子を前記樹脂ケースの前記複数の端子取付穴のいずれかの端子取付穴に装着する工程と、
前記端子押え枠を、前記L形脚部の先端と接触させ、前記樹脂ケースに接合する工程と、
前記端子押え枠に接着剤を塗布する工程と、
前記金属ベースを前記端子押え枠に圧着し、塗布された前記接着剤を前記第1の隙間と前記第2の隙間に注入させる工程と、
を有することを特徴とする半導体装置の製造方法。
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