JP7045978B2 - 半導体装置および電力変換装置 - Google Patents
半導体装置および電力変換装置 Download PDFInfo
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- JP7045978B2 JP7045978B2 JP2018229755A JP2018229755A JP7045978B2 JP 7045978 B2 JP7045978 B2 JP 7045978B2 JP 2018229755 A JP2018229755 A JP 2018229755A JP 2018229755 A JP2018229755 A JP 2018229755A JP 7045978 B2 JP7045978 B2 JP 7045978B2
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Description
本発明の実施の形態1について、図面を用いて以下に説明する。図1は、実施の形態1に係る半導体装置202の断面図である。図2は、半導体装置202が備える絶縁基板7の平面図である。図3は、半導体装置202の平面図である。図4は、半導体装置202が備える絶縁基板7の断面図である。
次に、実施の形態2に係る半導体装置について説明する。図5は、実施の形態2に係る半導体装置が備える絶縁基板7とケース10の固定状態を示す断面図である。なお、実施の形態2において、実施の形態1で説明したものと同一の構成要素については同一符号を付して説明は省略する。
本実施の形態は、上述した実施の形態1に係る半導体装置202を電力変換装置に適用したものである。本発明は特定の電力変換装置に限定されるものではないが、以下、実施の形態3として、三相のインバータに本発明を適用した場合について説明する。
Claims (4)
- 絶縁層と、前記絶縁層の上面に設けられた上部導体部と、前記絶縁層の下面に設けられた下部導体部とを有する絶縁基板と、
前記絶縁基板の上面に配置された半導体チップと、
前記絶縁基板および前記半導体チップを囲繞するケースと、
前記ケースの内部を封止する封止材と、
を備え、
前記上部導体部の厚みは前記下部導体部の厚みよりも厚く形成され、
前記上部導体部は、前記半導体チップが配置される回路パターンと、前記回路パターンの外周側に間隔をあけて設けられた外周パターンとを有し、
前記上部導体部の前記外周パターン、前記絶縁層の外周部、および前記下部導体部の外周部は、前記ケースの周壁部の内周部に形成された凹部に固定され、
前記ケースの前記周壁部の外周部から外側に突出する鍔部が形成され、
前記鍔部に冷却器を取り付け可能な取り付け穴が形成され、
前記絶縁基板は、前記上部導体部の前記外周パターンと前記下部導体部の外周部とを導通させる導電性ペーストをさらに有する、半導体装置。 - 前記絶縁層の平面視の最外端は、前記上部導体部の平面視の最外端および前記下部導体部の平面視の最外端と一致する、請求項1に記載の半導体装置。
- 前記半導体チップはSiCを材料として形成された、請求項1または請求項2に記載の半導体装置。
- 請求項1から請求項3のいずれか1項に記載の半導体装置を有し、入力される電力を変換して出力する主変換回路と、
前記主変換回路を制御する制御信号を前記主変換回路に出力する制御回路と、
を備えた、電力変換装置。
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