JP2018046187A - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP2018046187A JP2018046187A JP2016180640A JP2016180640A JP2018046187A JP 2018046187 A JP2018046187 A JP 2018046187A JP 2016180640 A JP2016180640 A JP 2016180640A JP 2016180640 A JP2016180640 A JP 2016180640A JP 2018046187 A JP2018046187 A JP 2018046187A
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Abstract
【解決手段】複数のトランジスタを有するトランジスタ部と、トランジスタ部を上面視した場合に、トランジスタ部の一辺と少なくとも対向し、トランジスタ部の外側に設けられた還流ダイオード部と、トランジスタ部を上面視した場合に、トランジスタ部に接して設けられ、トランジスタ部の外側全体を囲んでいない、ゲートランナー部およびゲートパッド部とを備える半導体装置を提供する。
【選択図】図1
Description
[先行技術文献]
[特許文献]
[特許文献1] 特開2016−96222号公報
[特許文献2] 特開2004−363328号公報
なお、IGBT部100とFWD部200の境界が1本のみの場合で、境界領域150の長さB1が0.5L程度であるときが、境界領域150の合計の長さαの下限値と考えても良い。すなわち、αはLの0.5倍以上であってよい。
Claims (13)
- 複数のトランジスタを有するトランジスタ部と、
前記トランジスタ部を上面視した場合に、前記トランジスタ部の一辺と少なくとも対向し、前記トランジスタ部の外側に設けられた還流ダイオード部と、
前記トランジスタ部を上面視した場合に、前記トランジスタ部に接して設けられ、前記トランジスタ部の外側全体を囲んでいない、ゲートランナー部およびゲートパッド部と
を備える
半導体装置。 - 前記トランジスタ部を上面視した場合に、前記トランジスタ部の内側には、還流ダイオードが設けられていない
請求項1に記載の半導体装置。 - 前記トランジスタ部を上面視した場合に、前記還流ダイオード部は、前記トランジスタ部、前記ゲートランナー部および前記ゲートパッド部の外側に連続的に設けられる
請求項1または2に記載の半導体装置。 - 前記還流ダイオード部は、矩形環状の四辺のうち一辺を切り欠いた形状である
請求項3に記載の半導体装置。 - 前記還流ダイオード部は、前記トランジスタ部の外側全体を囲んで設けられる
請求項3に記載の半導体装置。 - 前記トランジスタ部を上面視した場合に、前記還流ダイオード部の外側に位置するエッジ終端部をさらに備え、
前記還流ダイオード部は、前記エッジ終端部から延びる絶縁膜と重なる位置にエミッタトレンチ部を有する
請求項1から5のいずれか一項に記載の半導体装置。 - 前記半導体装置の外部と電気的に導通し、前記トランジスタ部を上面視した場合に前記トランジスタ部の内側に設けられる配線部をさらに備える
請求項1から6のいずれか一項に記載の半導体装置。 - 前記トランジスタ部および前記還流ダイオード部が設けられる半導体基板と、
前記半導体基板の裏面に設けられた裏面電極および前記半導体基板の側面に直接接して設けられた半田層と
をさらに備え、
前記半導体基板の厚みWと、前記半導体基板の前記側面における前記半導体基板の裏面上の前記半田層の高さTとは、
W/2<T
の関係を満たす
請求項1から7のいずれか一項に記載の半導体装置。 - 前記トランジスタ部を上面視した場合に前記半導体基板の前記側面から外側に突出した前記半田層の突出長さXと、前記半田層の高さTとは、
T<X
の関係を満たす
請求項8に記載の半導体装置。 - 前記還流ダイオード部は、前記エッジ終端部にまで延びているn型カソード層を有する
請求項6に記載の半導体装置。 - 前記エッジ終端部は、前記エッジ終端部の幅よりも小さいp型コレクタ層を有する
請求項10に記載の半導体装置。 - 前記エッジ終端部におけるp型コレクタ層の幅は、前記トランジスタ部および前記還流ダイオード部が設けられる半導体基板の厚みよりも小さい
請求項10または11に記載の半導体装置。 - 前記トランジスタ部と前記還流ダイオード部との境界領域の合計の長さは、前記半導体装置の一辺の長さの3.0倍以下である
請求項1から12のいずれか一項に記載の半導体装置。
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