JP2005129703A - プリモールドパッケージ及びこれを用いた半導体装置 - Google Patents
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Abstract
【解決手段】 内側の中空部分15には半導体素子12を載せる搭載部16を備え、中空部分15から複数のリード17が外部に導出する基台13と、基台13の密封蓋14とを有するプリモールドパッケージ11及びこれを利用した半導体装置10であって、搭載部16を、上端面が同一平面状にあって、溝又は窪み18によって仕切られる突出部18aによって形成した。
【選択図】 図1
Description
このような傾きは、特に、CCD(電荷結合素子)やCMOS(相補的金属酸化半導体)等の固体影像素子においては、半導体素子50の傾きが光の屈折や結像にそのまま影響を及ぼし、結果的には、半導体装置としての性能に著しく悪影響を与える原因となっていた。従って、この半導体素子の傾きは厳しく管理され、これによって、生産性が疎外される。
前記搭載部を、上端面が同一平面状にあって、溝又は窪みによって仕切られる突出部によって形成している。
これによって、接着剤が溝又は窪み内に嵌入し、余分の接着剤が搭載部上に残らない。
前記搭載部は、上端面が同一平面状にあって、溝又は窪みによって仕切られる突出部によって形成している。
これによって、半導体素子は、接着剤の部分的盛り上がり等によって搭載部上に傾くことなく、正確に載置される。
特に、請求項2記載のプリモールドパッケージ及び請求項4記載の半導体装置においては、搭載部は、半導体素子の少なくとも下部が嵌入する凹部内に形成されているので、半導体素子の位置決めも容易となる。
ここで、図1は本発明の一実施の形態に係る半導体装置の説明図、図2は図1におけるA−A矢視図、図3は本発明の他の実施の形態に係る半導体装置の搭載部の平面図である。
図1に示すように、本発明の一実施の形態に係る半導体装置10は、プリモールドパッケージ11とその内部に収納されている半導体素子12(例えば、固体影像素子)とを有している。プリモールドパッケージ11は、四角箱状に形成されたエポキシ樹脂製の基台13と、光透過性の合成樹脂又はガラスからなる板状の密封蓋14とを有し、基台13の内側の中空部分15の下部には半導体素子12を載せる搭載部16を備えている。そして、基台13には、基台13内の底部周囲に一方があって、他方は中空部分15から基台13の外側に突出する複数のリード17を有している。
基台13の外側に突出しているリード17は途中位置で下方に折り曲げられて、実装基板等への取付けが容易にできるようになっている。
密封蓋14は基台13の周囲に接着剤を介して固定され、中空部分15には不活性ガス(例えば、アルゴン)が充填されている。
基台13の形成には、所定のモールド成形金型を用意する。このモールド成形金型は上型と下型からなって、内部に熱硬化性エポキシ樹脂を充填することによって、図1に示すような内側に中空部分15、載置部16及び堰19を有する基台13を形成する。そして、上型及び下型の所定位置に固定されたアロイ42や銅等の導電性金属からなるリード17を中空部分15から外側に突出させている。このリード17の内側部分は基台13の底部28内に埋設され、リード17の上表面が露出している。なお、リード17の先端部は貴金属めっきされている。
この場合、残った接着剤は溝18内に零れ落ち、半導体素子12の底と載置部16の上端面との間には均一の薄い層からなる接着剤層が形成されるので、半導体素子12の水平状態が維持される。
Claims (4)
- 内側の中空部分には半導体素子を載せる搭載部を備え、該中空部分から複数のリードが外部に導出する基台と、該基台の密封蓋とを有するプリモールドパッケージであって、
前記搭載部を、上端面が同一平面状にあって、溝又は窪みによって仕切られる突出部によって形成したことを特徴とするプリモールドパッケージ。 - 請求項1記載のプリモールドパッケージにおいて、前記搭載部は、前記半導体素子の少なくとも下部が僅少の隙間を有して嵌入する凹部内に形成され、前記溝又は窪みの容積は、塗布される接着剤の量より大きいことを特徴とするプリモールドパッケージ。
- 密封蓋付きの基台の内部から外部に導出する複数のリードを備え、前記基台の中空部分の搭載部には半導体素子が搭載され、該半導体素子の電極部と前記リードとは電気的に接続されたプリモールドパッケージ型の半導体装置であって、
前記搭載部は、上端面が同一平面状にあって、溝又は窪みによって仕切られる突出部によって形成したことを特徴とする半導体装置。 - 請求項3記載の半導体装置において、前記搭載部は、前記半導体素子の少なくとも下部が僅少の隙間を有して嵌入する凹部内に形成され、前記半導体素子は固体影像素子であって、前記密封蓋は光透過性の板状物であることを特徴とする半導体装置。
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007074066A (ja) * | 2005-09-05 | 2007-03-22 | Seiko Epson Corp | 圧電デバイス |
JP2007180164A (ja) * | 2005-12-27 | 2007-07-12 | Fujifilm Corp | 固体撮像素子用パッケージ |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007074066A (ja) * | 2005-09-05 | 2007-03-22 | Seiko Epson Corp | 圧電デバイス |
JP2007180164A (ja) * | 2005-12-27 | 2007-07-12 | Fujifilm Corp | 固体撮像素子用パッケージ |
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