JP6213562B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP6213562B2 JP6213562B2 JP2015519537A JP2015519537A JP6213562B2 JP 6213562 B2 JP6213562 B2 JP 6213562B2 JP 2015519537 A JP2015519537 A JP 2015519537A JP 2015519537 A JP2015519537 A JP 2015519537A JP 6213562 B2 JP6213562 B2 JP 6213562B2
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- 239000004065 semiconductor Substances 0.000 title claims description 88
- 229910052751 metal Inorganic materials 0.000 claims description 105
- 239000002184 metal Substances 0.000 claims description 105
- 239000000758 substrate Substances 0.000 claims description 21
- 230000002093 peripheral effect Effects 0.000 claims description 17
- 229910002601 GaN Inorganic materials 0.000 claims description 2
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 claims description 2
- 239000010432 diamond Substances 0.000 claims description 2
- 229910003460 diamond Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical group [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 230000000052 comparative effect Effects 0.000 description 10
- 229910000679 solder Inorganic materials 0.000 description 10
- 230000006866 deterioration Effects 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 230000005855 radiation Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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Description
図1は、本発明の実施の形態1に係る半導体装置の内部構造の平面図である。この半導体装置はベース板10を備えている。ベース板10は例えば平面視で四角形に形成されている。ベース板10にはベース板10の第1辺10aに沿う複数の第1貫通孔12が形成されている。また、ベース板10の第1辺10aに対向する第2辺10bに沿って、複数の第2貫通孔14が形成されている。
本発明の実施の形態2に係る半導体装置は、実施の形態1の半導体装置と一致点が多いので、実施の形態1の半導体装置との相違点を中心に説明する。図8は、本発明の実施の形態2に係る半導体装置の内部構造の平面図である。
本発明の実施の形態3に係る半導体装置は、実施の形態2の半導体装置と一致点が多いので、実施の形態2の半導体装置との相違点を中心に説明する。図10は、本発明の実施の形態3に係る半導体装置の内部構造の平面図である。
本発明の実施の形態4に係る半導体装置は、実施の形態3の半導体装置と一致点が多いので、実施の形態3の半導体装置との相違点を中心に説明する。図12は、本発明の実施の形態4に係る半導体装置の内部構造の平面図である。
Claims (12)
- 平面視で四角形に形成されたベース板と、
前記ベース板の第1辺側に複数形成された第1単位構造と、
前記ベース板の前記第1辺に対向する第2辺側に複数形成された第2単位構造と、を備え、
すべての前記第1単位構造及び前記第2単位構造は、
前記ベース板に固定された絶縁基板と、
前記絶縁基板の上に形成された金属パターンと、
前記金属パターンと電気的に接続された半導体素子と、
上端部が外部に露出し、下端部が前記金属パターンのうち前記ベース板の外縁に最も近い部分である外周部にのみ接続された、少なくとも1つの主電極と、を備え、
前記第1単位構造と前記第2単位構造は、前記主電極以外の主電極を備えないことを特徴とする半導体装置。 - 平面視で四角形に形成されたベース板と、
前記ベース板の上に形成された複数の単位構造と、を備え、
すべての前記単位構造は、
前記ベース板に固定された絶縁基板と、
前記絶縁基板の上に形成された金属パターンと、
前記金属パターンと電気的に接続された半導体素子と、
上端部が外部に露出し、下端部が前記金属パターンのうち前記ベース板の外縁に最も近い部分である外周部に接続された主電極と、を備え、
前記複数の単位構造は、
前記ベース板の第1辺側に形成された第1単位構造と、
前記ベース板の前記第1辺に対向する第2辺側に形成された第2単位構造と、を備え、
前記主電極は、前記第1単位構造の前記第1辺側の前記外周部と接続された第1下端部と、前記第2単位構造の前記第2辺側の前記外周部と接続された第2下端部と、を備えたことを特徴とする半導体装置。 - 前記ベース板には、前記ベース板の前記第1辺に沿う複数の第1貫通孔と、前記第2辺に沿う複数の第2貫通孔が形成され、
前記下端部はすべて、前記複数の第1貫通孔又は前記複数の第2貫通孔に沿って並んだことを特徴とする請求項1又は2に記載の半導体装置。 - 前記複数の第1貫通孔と前記複数の第2貫通孔を貫通するねじと、
前記ねじにより前記ベース板の裏面に接続された冷却器と、を備えたことを特徴とする請求項3に記載の半導体装置。 - すべての前記下端部は、前記第1辺から前記第2辺に向かって前記第1辺から前記第2辺までの距離の1/4だけ進んだ場所よりも前記第1辺側、又は、前記第2辺から前記第1辺に向かって前記第2辺から前記第1辺までの距離の1/4だけ進んだ場所よりも前記第2辺側の部分にあることを特徴とする請求項3に記載の半導体装置。
- 前記金属パターンは、第1金属パターンと、前記第1金属パターンと絶縁された第2金属パターンと、を備え、
前記半導体素子は、第1部分と第2部分の間で主電流を流し、前記第1部分が前記第1金属パターンと電気的に接続され、前記第2部分が前記第2金属パターンと電気的に接続され、
前記主電極は、前記第1金属パターンに接続された第1主電極と、前記第2金属パターンに接続された第2主電極と、を備えたことを特徴とする請求項1又は2に記載の半導体装置。 - 前記主電極は前記第1下端部を2つ以上有し、かつ前記第2下端部を2つ以上有することを特徴とする請求項2に記載の半導体装置。
- 前記半導体素子は、スイッチング素子又はダイオードであることを特徴とする請求項1に記載の半導体装置。
- 前記半導体素子はワイドバンドギャップ半導体で形成されたことを特徴とする請求項8に記載の半導体装置。
- 前記ワイドバンドギャップ半導体は、炭化珪素、窒化ガリウム系材料、又はダイヤモンドであることを特徴とする請求項9に記載の半導体装置。
- 前記第2金属パターンの主電流が流れる方向の長さは、前記第2金属パターンの幅を2倍した値より大きいことを特徴とする請求項6に記載の半導体装置。
- 前記金属パターンは、相互に絶縁された第1金属パターン、第2金属パターン、及び第3金属パターンを備え、
前記主電極は、前記第1金属パターンと前記第3金属パターンに接続された第1主電極と、前記第2金属パターンに接続された第2主電極と、を備えたことを特徴とする請求項1又は2に記載の半導体装置。
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JP3521651B2 (ja) * | 1996-10-18 | 2004-04-19 | 株式会社日立製作所 | パワー半導体装置 |
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