JPWO2018056213A1 - 電力用半導体モジュール及び電力用半導体装置 - Google Patents
電力用半導体モジュール及び電力用半導体装置 Download PDFInfo
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- JPWO2018056213A1 JPWO2018056213A1 JP2018541045A JP2018541045A JPWO2018056213A1 JP WO2018056213 A1 JPWO2018056213 A1 JP WO2018056213A1 JP 2018541045 A JP2018541045 A JP 2018541045A JP 2018541045 A JP2018541045 A JP 2018541045A JP WO2018056213 A1 JPWO2018056213 A1 JP WO2018056213A1
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Abstract
Description
図1から図4を用いて、この発明の実施の形態1に従う電力用半導体モジュールの構造について説明する。図1は、実施の形態1に従う電力用半導体モジュールの上面図であり、図2は、図1に示す電力用半導体モジュールの内部を概略的に示した平面図である。また、図3は、図1に示す電力用半導体モジュールの断面の一部を模式的に示した断面図であり、図4は、図1に示す半導体素子の構造を模式的に示した平面図である。
上記の実施の形態1においては、ゲート制御配線パターン9に接続されるフィルタ用端子23が設けられ、ゲート制御配線パターン9に接続される既設のゲート制御端子5との間にフィルタを形成するための素子(コンデンサ64等)を接続するものとしたが、既設のゲート制御端子5を用いることなく、フィルタ用端子を複数設けてもよい。
上記の実施の形態1では、ゲート制御配線パターン9に対して、ゲート発振を抑制するためのフィルタを構成するものとした。半導体スイッチング素子16A,16Bが並列動作する場合、半導体スイッチング素子16A,16Bの寄生容量と、半導体スイッチング素子16A,16Bを接続する配線の寄生インダクタンスとにより、半導体スイッチング素子16A,16B間で発振が生じることがある。そして、コレクタ配線パターン7がその発振経路になることがあり、この発振がゲート発振の要因となることがある。そこで、この実施の形態2では、コレクタ配線パターン7に対して、発振を抑制するためのフィルタが構成される。
上述のように、半導体スイッチング素子16A,16Bが並列動作する場合、半導体スイッチング素子16A,16B間で発振が生じることがあるところ、エミッタ配線パターン8がその発振経路になることがあり、この発振がゲート発振の要因となることがある。そこで、この実施の形態3では、エミッタ配線パターン8に対して、発振を抑制するためのフィルタが構成される。
この実施の形態4では、電力用半導体モジュールが並列動作する電力用半導体装置について、各電力用半導体モジュールの内外において生じる発振を抑制するためのフィルタをモジュール外部に形成するための構成が示される。
上記の各実施の形態では、電力用半導体モジュールが、並列動作する1組の複数の半導体スイッチング素子と、それらに対応して設けられる複数の還流ダイオードとを含む、所謂1in1モジュールで構成されるものとした。この実施の形態5では、電力用半導体モジュールが、並列動作する1組の複数の半導体スイッチング素子とそれらに対応して設けられる複数の還流ダイオードとによって構成されるアームが直列に2つ接続された上下アームを含む、所謂2in1モジュールで構成される場合について示される。
Claims (17)
- 並列動作する第1の複数の半導体素子と、
前記第1の複数の半導体素子を格納する筐体と、
前記第1の複数の半導体素子の互いに対応する端子が接続される第1の配線に接続され、前記筐体の外部に設けられる第1のフィルタ形成用素子を前記第1の配線に電気的に接続するための第1及び第2の外部端子とを備え、
前記第1及び第2の外部端子は、前記第1の配線において前記第1の外部端子と前記第2の外部端子とを電気的に接続する区間が、前記第1の複数の半導体素子の並列動作時における前記第1の配線上の通電領域の少なくとも一部を含むように、前記第1の配線に接続される、電力用半導体モジュール。 - 前記第1及び第2の外部端子は、前記区間が、前記第1の配線において前記互いに対応する端子を電気的に接続する区間の少なくとも一部と重なるように、前記第1の配線に接続される、請求項1に記載の電力用半導体モジュール。
- 前記筐体の外部において前記第1及び第2の外部端子間に電気的に接続され、前記第1のフィルタ形成用素子を構成するコンデンサをさらに備える、請求項1に記載の電力用半導体モジュール。
- 前記筐体の外部において前記コンデンサに電気的に直列接続され、前記第1のフィルタ形成用素子を構成する抵抗素子をさらに備える、請求項3に記載の電力用半導体モジュール。
- 前記筐体の外部において前記コンデンサに電気的に並列接続され、前記第1のフィルタ形成用素子を構成する抵抗素子をさらに備える、請求項3に記載の電力用半導体モジュール。
- 前記筐体の外部において前記第1及び第2の外部端子間に電気的に接続され、前記第1のフィルタ形成用素子を構成する整流型半導体素子をさらに備える、請求項1に記載の電力用半導体モジュール。
- 前記筐体の外部において前記整流型半導体素子に電気的に並列接続され、前記第1のフィルタ形成用素子を構成する抵抗素子をさらに備える、請求項6に記載の電力用半導体モジュール。
- 前記筐体の外部において前記第1及び第2の外部端子間に電気的に接続され、前記第1のフィルタ形成用素子を構成する自己消弧型の半導体スイッチング素子をさらに備える、請求項1に記載の電力用半導体モジュール。
- 前記筐体の外部において前記半導体スイッチング素子に電気的に並列接続され、前記第1のフィルタ形成用素子を構成する抵抗素子をさらに備える、請求項8に記載の電力用半導体モジュール。
- 前記筐体の外部において前記半導体スイッチング素子に電気的に直列接続され、前記第1のフィルタ形成用素子を構成する抵抗素子をさらに備える、請求項8に記載の電力用半導体モジュール。
- 前記第1の複数の半導体素子の各々は、自己消弧型の半導体スイッチング素子であり、
前記互いに対応する端子の各々はゲートである、請求項1から請求項10のいずれか1項に記載の電力用半導体モジュール。 - 前記第1の複数の半導体素子の各々は、自己消弧型の半導体スイッチング素子であり、
前記互いに対応する端子の各々はコレクタである、請求項1から請求項10のいずれか1項に記載の電力用半導体モジュール。 - 前記第1の複数の半導体素子の各々は、自己消弧型の半導体スイッチング素子であり、
前記互いに対応する端子の各々はエミッタである、請求項1から請求項10のいずれか1項に記載の電力用半導体モジュール。 - 前記第1の複数の半導体素子の各々は、ワイドバンドギャップ半導体によって構成される、請求項1から請求項13のいずれか1項に記載の電力用半導体モジュール。
- 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、酸化ガリウム及びダイヤモンドのいずれかである、請求項14に記載の電力用半導体モジュール。
- 並列動作する第2の複数の半導体素子をさらに備え、
前記筐体は、前記第2の複数の半導体素子をさらに格納し、
前記第1の複数の半導体素子は、上アームを構成し、
前記第2の複数の半導体素子は、下アームを構成し、さらに、
前記第2の複数の半導体素子の互いに対応する端子が接続される第2の配線に接続され、前記筐体の外部に設けられる第2のフィルタ形成用素子を前記第2の配線に電気的に接続するための第3及び第4の外部端子を備え、
前記第3及び第4の外部端子は、前記第2の配線において前記第3の外部端子と前記第4の外部端子とを電気的に接続する区間が、前記第2の複数の半導体素子の並列動作時における前記第2の配線上の通電領域の少なくとも一部を含むように、前記第2の配線に接続される、請求項1から請求項15のいずれか1項に記載の電力用半導体モジュール。 - 並列動作する第1及び第2の電力用半導体モジュールを備え、
前記第1及び第2の電力用半導体モジュールの各々は、
並列動作する複数の半導体素子と、
前記複数の半導体素子を格納する筐体と、
前記複数の半導体素子の互いに対応する端子が接続される配線に接続される第1及び第2の外部端子とを含み、
前記第1及び第2の外部端子は、前記配線において前記第1の外部端子と前記第2の外部端子とを電気的に接続する区間が、前記複数の半導体素子の並列動作時における前記配線上の通電領域の少なくとも一部を含むように、前記配線に接続され、さらに、
前記筐体の外部に設けられ、前記第1の電力用半導体モジュールの前記第1の外部端子と、前記第2の電力用半導体モジュールの前記第1の外部端子との間に電気的に接続されるフィルタ形成用素子を備える、電力用半導体装置。
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