JP6366806B1 - 電力用半導体装置 - Google Patents
電力用半導体装置 Download PDFInfo
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- JP6366806B1 JP6366806B1 JP2017205800A JP2017205800A JP6366806B1 JP 6366806 B1 JP6366806 B1 JP 6366806B1 JP 2017205800 A JP2017205800 A JP 2017205800A JP 2017205800 A JP2017205800 A JP 2017205800A JP 6366806 B1 JP6366806 B1 JP 6366806B1
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- power semiconductor
- inner lead
- lead
- semiconductor device
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Abstract
【解決手段】電力用半導体装置1は、リードフレーム2のインナーリード6が接合された領域23に、インナーリード6の長手方向端面6aに沿って切り欠き7が設けられている。このインナーリード6に対して、切り欠き7と同じ側に電子部品(抵抗器4)が隣接して配置されており、インナーリード6と切り欠き7との距離L1を、インナーリード6と抵抗器4との距離L2よりも小さく設定することにより、インナーリード6が位置ずれした場合も抵抗器4に接触しない。このため、インナーリード6の周囲にインナーリード6の位置ずれを考慮した空間を設ける必要がなくなり、その分パワー半導体チップ3の放熱面積を確保することができ、小型で高出力な電力用半導体装置1が得られる。
【選択図】図4
Description
以下に、本発明の実施の形態1に係る電力用半導体装置について、図面に基づいて説明する。図1は、本実施の形態1に係る電力用半導体装置を模式的に示す平面図、図2は、図1中、A−Aで示す部分の断面図、図3は、図1中、B−Bで示す部分の断面図である。なお、各図において、同一、相当部分には同一符号を付している。
図5は、本発明の実施の形態2に係る電力用半導体装置を模式的に示す平面図である。本実施の形態2に係る電力用半導体装置1Aを構成するリードフレーム2は、電気的に独立した複数の領域21、22、24、25を有している。図5において、領域21はP電位リード、領域22および領域25はAC電位リード、領域24はN電位リードである。
Claims (9)
- 電気的に独立した複数の領域を有するリードフレームと、前記リードフレームに搭載されたスイッチング可能なパワー半導体チップと、前記パワー半導体チップの上面電極と前記リードフレームとを電気的に接続している金属製のインナーリードと、少なくとも前記リードフレームと前記インナーリードとを接合している導電性接合部材と、前記リードフレーム、前記パワー半導体チップ、および前記インナーリードを覆う樹脂を備え、
前記リードフレームの前記インナーリードが接合された領域に、前記インナーリードに沿って切り欠きが設けられていることを特徴とする電力用半導体装置。 - 前記インナーリードに対し前記切り欠きと同じ側に隣接して配置された電子部品を備え、前記インナーリードと前記切り欠きとの距離は、前記インナーリードと前記電子部品との距離よりも小さいことを特徴とする請求項1記載の電力用半導体装置。
- 前記リードフレームの前記パワー半導体チップが搭載された領域は、前記切り欠きに対向し前記切り欠きの内部に張り出した拡張部を有することを特徴とする請求項1または請求項2に記載の電力用半導体装置。
- 前記切り欠きは、前記インナーリードの少なくとも一方の長手方向端面に沿って設けられていることを特徴とする請求項1から請求項3のいずれか一項に記載の電力用半導体装置。
- 前記切り欠きは、直角三角形に形成されており、該直角三角形の斜辺が前記インナーリードの前記長手方向端面と平行に配置されることを特徴とする請求項4記載の電力用半導体装置。
- 前記インナーリードの前記長手方向端面と前記切り欠きとの距離をL1、前記インナーリードの前記長手方向端面と前記長手方向端面に隣接する電子部品との距離をL2とするとき、0.5mm≦L1<L2であることを特徴とする請求項4または請求項5に記載の電力用半導体装置。
- 前記インナーリードの前記長手方向端面と前記長手方向端面に隣接する電子部品との距離をL2とするとき、L2≦5mmであることを特徴とする請求項4から請求項6のいずれか一項に記載の電力用半導体装置。
- 前記電子部品は、電流検出用抵抗器であることを特徴とする請求項6または請求項7に記載の電力用半導体装置。
- 前記リードフレームの前記インナーリードが接合された領域に、前記インナーリードと接続されている前記パワー半導体チップとは別のパワー半導体チップが前記インナーリードに隣接して搭載され、前記インナーリードと前記別のパワー半導体チップとの間に前記切り欠きが設けられていることを特徴とする請求項1から請求項4のいずれか一項に記載の電力用半導体装置。
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US20070166877A1 (en) * | 2006-01-18 | 2007-07-19 | Ralf Otremba | Electronic component and method for its assembly |
JP2014078646A (ja) * | 2012-10-12 | 2014-05-01 | Panasonic Corp | パワーモジュールとその製造方法 |
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US20070166877A1 (en) * | 2006-01-18 | 2007-07-19 | Ralf Otremba | Electronic component and method for its assembly |
JP2014078646A (ja) * | 2012-10-12 | 2014-05-01 | Panasonic Corp | パワーモジュールとその製造方法 |
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