JP2021190640A - パワーモジュール - Google Patents
パワーモジュール Download PDFInfo
- Publication number
- JP2021190640A JP2021190640A JP2020096847A JP2020096847A JP2021190640A JP 2021190640 A JP2021190640 A JP 2021190640A JP 2020096847 A JP2020096847 A JP 2020096847A JP 2020096847 A JP2020096847 A JP 2020096847A JP 2021190640 A JP2021190640 A JP 2021190640A
- Authority
- JP
- Japan
- Prior art keywords
- switching element
- semiconductor switching
- side switching
- power module
- metal plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004065 semiconductor Substances 0.000 claims abstract description 88
- 239000002184 metal Substances 0.000 claims description 59
- ORQBXQOJMQIAOY-UHFFFAOYSA-N nobelium Chemical compound [No] ORQBXQOJMQIAOY-UHFFFAOYSA-N 0.000 abstract description 31
- 230000008901 benefit Effects 0.000 abstract description 8
- 230000002411 adverse Effects 0.000 abstract description 7
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000006378 damage Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
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- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
- H03K17/081—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit
- H03K17/0812—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the control circuit
- H03K17/08122—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the control circuit in field-effect transistor switches
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Abstract
Description
図1は、本実施の形態1に係る、負荷900およびそれを駆動する負荷駆動装置601を有するシステム701の構成を概略的に示す図である。図2は、負荷駆動装置601の構成を概略的に示す平面図であり、図3は、矢印III(図2)の視点での概略的な側面図である。負荷駆動装置601は、パワーモジュール501と、シャント抵抗3とを有している。なお、図2および図3において、XYZ直交座標系が示されており、当該座標系のZ方向はパワーモジュール501の厚み方向に対応しており、当該座標系のXY方向はパワーモジュール501の、厚み方向に垂直な面内方向に対応している。
図5は、本実施の形態2に係るパワーモジュール502およびシャント抵抗3の構成を概略的に示す平面図である。ゲートパッド151bは面内方向においてハイサイドスイッチング素子141aから、少なくとも部分的に外れて配置されており、好ましくは、図5に示すように全体的に外れて配置されている。ボンディングワイヤ8の、ゲートパッド151bに接合された端部EDは、面内方向においてハイサイドスイッチング素子141aから外れて配置されている。ローサイドスイッチング素子141bは面内方向において第1から第4の角部C1〜C4を有しており、ローサイドスイッチング素子141bのゲートパッド151bは、第1から第3の角部C1〜C3に比して第4の角部C4の近くに配置されている。
図6は、本実施の形態3に係るパワーモジュール503の構成を概略的に示す平面図である。
Claims (9)
- 厚み方向と前記厚み方向に垂直な面内方向とを有するパワーモジュールであって、
第1の半導体スイッチング素子と、
前記第1の半導体スイッチング素子に直列に接続され、前記厚み方向において前記第1の半導体スイッチング素子に少なくとも部分的に積層された第2の半導体スイッチング素子と、
前記第1の半導体スイッチング素子および前記第2の半導体スイッチング素子を制御し、シャント電圧を参照して過電流保護動作を行う第1の制御素子と、
を備え、
前記第1の制御素子は前記面内方向において前記第1の半導体スイッチング素子および前記第2の半導体スイッチング素子から外れて配置されている、パワーモジュール。 - 前記第1の半導体スイッチング素子が搭載された第1の金属プレートと、
前記第1の制御素子が搭載され、前記第1の金属プレートから分離された第2の金属プレートと、
をさらに備え、前記第2の金属プレートは前記面内方向において前記第1の半導体スイッチング素子および前記第2の半導体スイッチング素子から外れて配置されている、請求項1に記載のパワーモジュール。 - 前記第2の金属プレートへ前記第1の制御素子を機械的に接合し、かつ前記第2の金属プレートへ前記第1の制御素子を電気的に接続する導電性接合層をさらに備える、請求項2に記載のパワーモジュール。
- 前記第2の半導体スイッチング素子は、前記第1の制御素子からの制御信号を受け付けるためのゲートパッドを有しており、前記ゲートパッドは前記面内方向において前記第1の半導体スイッチング素子から少なくとも部分的に外れて配置されている、請求項1から3のいずれか1項に記載のパワーモジュール。
- 前記第2の半導体スイッチング素子の前記ゲートパッドに接合された端部を有するボンディングワイヤをさらに備え、前記ボンディングワイヤの前記端部は前記面内方向において前記第1の半導体スイッチング素子から外れて配置されている、請求項4に記載のパワーモジュール。
- 前記第2の半導体スイッチング素子は前記面内方向において第1から第4の角部を有しており、前記第2の半導体スイッチング素子の前記ゲートパッドは前記第1から第3の角部に比して前記第4の角部の近くに配置されている、請求項4または5に記載のパワーモジュール。
- 第3の半導体スイッチング素子と、
前記第3の半導体スイッチング素子に直列に接続され、前記厚み方向において前記第3の半導体スイッチング素子に少なくとも部分的に積層された第4の半導体スイッチング素子と、
前記第3の半導体スイッチング素子および前記第4の半導体スイッチング素子を制御する第2の制御素子と、
をさらに備え、前記第2の制御素子は前記面内方向において前記第3の半導体スイッチング素子および前記第4の半導体スイッチング素子から外れて配置されている、請求項1に記載のパワーモジュール。 - 前記第1の半導体スイッチング素子および前記第3の半導体スイッチング素子が搭載された第1の金属プレートをさらに備える、請求項7に記載のパワーモジュール。
- 前記第2の半導体スイッチング素子および前記第4の半導体スイッチング素子に接合された第3の金属プレートをさらに備える、請求項7または8に記載のパワーモジュール。
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JP7332537B2 (ja) | 2023-08-23 |
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