JP7070658B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP7070658B2 JP7070658B2 JP2020505670A JP2020505670A JP7070658B2 JP 7070658 B2 JP7070658 B2 JP 7070658B2 JP 2020505670 A JP2020505670 A JP 2020505670A JP 2020505670 A JP2020505670 A JP 2020505670A JP 7070658 B2 JP7070658 B2 JP 7070658B2
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Description
また、本発明の一観点によれば、回路板と前記回路板が形成された絶縁板とを備える基板と、内部に筒状の中空孔が形成され、前記中空孔の内面が平滑であって、前記回路板のおもて面の接合領域に接合部材を介して開口端部が接合されるコンタクト部品と、を有し、前記コンタクト部品の前記接合部材との接触領域にめっき処理された第1めっき材と、前記回路板の少なくとも前記接合領域にめっき処理された第2めっき材と、を備え、前記第2めっき材は、リンを含むニッケル合金により構成されており、前記第1めっき材は、前記第2めっき材より、リンの含有量が少ないニッケルまたはニッケル合金により構成されている、半導体装置が提供される。
まず、第1の実施の形態の半導体装置について図1を用いて説明する。図1は、第1の実施の形態の半導体装置の側断面図である。半導体装置10は、図1に示されるように、積層基板14と、積層基板14のおもて面に設けられた半導体素子15及びコンタクト部品17a,17b,17cと、コンタクト部品17a,17b,17cにそれぞれ取り付けられた外部接続端子18a,18b,18cとを有している。なお、積層基板14上には複数の半導体素子15が設けられている。但し、図1では、複数の半導体素子15のうち1つの半導体素子15を図示している。また、半導体素子15の配置位置は、図1以外の場所でも構わない。また、ケース21が積層基板14の外周に接合されている。そのため、半導体素子15、コンタクト部品17a,17b,17c、外部接続端子18a,18b,18c等がケース21内に収納されている。但し、外部接続端子18a,18b,18cの先端部はケース21からケース21の外側に延出されている。なお、おもて面とは、半導体装置10において、外部接続端子18a,18b,18cの先端部がケース21から延出している側の面を表す。また、裏面とは、半導体装置10において、後述する冷却器が設けられる側の面を表す。なお、以下では、後述する回路板13a,13b,13c,13d,13e,13f、ボンディングワイヤ16a,16b,16c,16d,16e,16f,16g並びに外部接続端子18a,18b,18cについて、それぞれ区別しない場合には、回路板13、ボンディングワイヤ16並びに外部接続端子18と表す。
Sr=第1めっき材のはんだ平面積S1/第2めっき材のはんだ平面積S2×100
・・・・・・・式(1)
第2の実施の形態の半導体装置は、図1に示した半導体装置10と同様の構成を有する。但し、第2の実施の形態の半導体装置は、半導体装置10における第1めっき材及び第2めっき材のめっき処理領域が異なっており、また、第1めっき材、第2めっき材及び接合部材は、具体的な材質が利用されている。さらに、第1の実施の形態とは異なるコンタクト部品が適用されている。
11 絶縁板
12 金属板
13,13a,13b,13c,13d,13e,13f 回路板
13a1,13a2 第2めっき材
14 積層基板
15 半導体素子
16,16a,16b,16c,16d,16e,16f,16g ボンディングワイヤ
17,17a,17b,17c,27 コンタクト部品
17e 胴体部
17f 中空孔
17f1,17f2 開口端部
17g,17h フランジ
17g1,17g2,17g3,17h1,17h2 凸部
17g4,17h4 側端面
17g5,17h5 底面部
17g6,17h6 段差部
18,18a,18b,18c 外部接続端子
19 接合部材
21 ケース
22,23 第1めっき材
Claims (10)
- 回路板と前記回路板が形成された絶縁板とを備える基板と、
内部に筒状の中空孔が形成され、前記回路板のおもて面の接合領域に接合部材を介して開口端部が接合されるコンタクト部品と、
を有し、
前記コンタクト部品の前記接合部材との接触領域にめっき処理された第1めっき材と、
前記回路板の少なくとも前記接合領域にめっき処理された第2めっき材と、
を備え、
前記第2めっき材は、含有量が8重量%以上、10重量%以下であるリンを含むニッケル合金により構成されており、
前記第1めっき材は、前記第2めっき材より、リンの含有量が少ないニッケルまたはニッケル合金により構成されている、
半導体装置。 - 回路板と前記回路板が形成された絶縁板とを備える基板と、
内部に筒状の中空孔が形成され、前記中空孔の内面が平滑であって、前記回路板のおもて面の接合領域に接合部材を介して開口端部が接合されるコンタクト部品と、
を有し、
前記コンタクト部品の前記接合部材との接触領域にめっき処理された第1めっき材と、
前記回路板の少なくとも前記接合領域にめっき処理された第2めっき材と、
を備え、
前記第2めっき材は、リンを含むニッケル合金により構成されており、
前記第1めっき材は、前記第2めっき材より、リンの含有量が少ないニッケルまたはニッケル合金により構成されている、
半導体装置。 - 前記コンタクト部品の少なくとも前記接触領域にめっき処理された第1めっき材と、前記回路板の少なくとも前記接合領域にめっき処理された第2めっき材とは、濡れ性が略等しい、
請求項1または2に記載の半導体装置。 - 前記接合部材は、はんだにより構成されており、前記第2めっき材に対する前記第1めっき材のはんだ広がり比率が、90%以上、110%以下である、
請求項3に記載の半導体装置。 - 前記接合部材は、はんだにより構成されており、前記第2めっき材に対する前記第1めっき材のはんだ広がり比率が、95%以上、105%以下である、
請求項3に記載の半導体装置。 - 前記回路板は、銅または銅合金により構成されている、
請求項1または2に記載の半導体装置。 - 前記コンタクト部品は、銅、アルミニウム、鉄、銀、または、少なくともこれらの一種を含む合金により構成されている、
請求項1または2に記載の半導体装置。 - さらに、前記コンタクト部品に圧入されている外部接続端子を備える、
請求項1または2に記載の半導体装置。 - 前記接合部材は、鉛フリーはんだにより構成されている、
請求項1または2に記載の半導体装置。 - 前記第1めっき材は、ニッケルにより構成されている、
請求項1または2に記載の半導体装置。
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