JP5555206B2 - 半導体パワーモジュール - Google Patents
半導体パワーモジュール Download PDFInfo
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- JP5555206B2 JP5555206B2 JP2011152779A JP2011152779A JP5555206B2 JP 5555206 B2 JP5555206 B2 JP 5555206B2 JP 2011152779 A JP2011152779 A JP 2011152779A JP 2011152779 A JP2011152779 A JP 2011152779A JP 5555206 B2 JP5555206 B2 JP 5555206B2
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Description
実施形態の説明をする上で、対象とする半導体モジュールの課題について、詳細に説明する。半導体パワーモジュールは、放熱ベースの上に、配線パターンを形成した半導体実装基板をはんだなどで接合し、その半導体実装基板の配線パターンの上に、複数の半導体素子を並列接続となるようにはんだなどで接合する。鉄道用などの大電力用のパワーモジュールでは、この半導体実装基板を複数搭載することで、多くの半導体素子の並列接続を実現する。このとき、各半導体実装基板は、電極端子からの配線距離が異なり、寄生インダクタンスの差異が生じる。
図1から図7、及び図16を用いて実施形態1で示す半導体パワーモジュールを説明する。図1は実施形態1で示す半導体パワーモジュールの斜視図である。図2は実施形態1で示す半導体パワーモジュールに用いる半導体実装基板104の平面図である。また、図3は図1のA−A断面図である。図4は実施形態1で示す半導体パワーモジュールの平面図である。図5は実施形態1で示す半導体パワーモジュールに用いるコレクタ電極111、エミッタ電極112の斜視図である。図6は実施形態1で示す半導体パワーモジュールの正面図である。また、図7は実施形態1で示す半導体パワーモジュールの側面図である。さらに、図16は、図1の半導体パワーモジュールの外観の斜視図である。ただし、図1から図7には、半導体実装基板104上の説明上必要がある場合を除いてボンディングワイヤは図示しない。また、図6及び図7には、ゲート電極115及びエミッタセンス電極116は図示しない。
半導体パワーモジュールは、図1に示すように、放熱ベース101、半導体実装基板104(第1の半導体実装基板104a、第2の半導体実装基板104b)、コレクタ電極111、エミッタ電極112、絶縁材113、ゲート電極115、エミッタセンス電極116、ゲート電極接続ワイヤ121、エミッタセンス電極接続ワイヤ122、及び図示しないが絶縁材113の周囲を覆うケースを備えている。なお、半導体実装基板104は、放熱ベース101上に基板下はんだ102(図3参照)により接合されている。
図8は実施形態2で示す半導体パワーモジュールの平面図である。また、図9は実施形態2で示す半導体パワーモジュールの側面図である。図10は実施形態2で示す半導体パワーモジュールに用いるコレクタ電極111、エミッタ電極112の斜視図である。実施形態2の半導体パワーモジュールの構成は、コレクタ電極111及びエミッタ電極112の形状を除き、実施形態1で示した半導体パワーモジュールと同様である。このためゲート電極及びエミッタセンス電極の図示を省略する。
図11は実施形態3で示す半導体パワーモジュールの斜視図である。また、図12は実施形態3で示す半導体パワーモジュールの平面図である。図13は実施形態3で示す半導体パワーモジュールに用いる半導体実装基板104の平面図である。図14は実施形態3で示す半導体パワーモジュールに用いるコレクタ電極111、エミッタ電極112の斜視図である。ただし、図11、図12には半導体実装基板104上のボンディングワイヤは図示しない。
102 基板下はんだ
103 基板裏側金属膜
104 半導体実装基板
104a 第1の半導体実装基板
104b 第2の半導体実装基板
105 コレクタ配線
106 エミッタ配線
107 チップ下はんだ
108 スイッチング素子
109 還流ダイオード
110 エミッタワイヤ
111 コレクタ電極
111a,111b,112a、112b 足部
111h,112h 向かい合う辺
111t コレクタ電極端子面
112 エミッタ電極
112t エミッタ電極端子面
113 絶縁材
114 絶縁層
115 ゲート電極
116 エミッタセンス電極
117 ゲート配線
118 エミッタセンス配線
119 ゲートワイヤ
120 エミッタセンスワイヤ
121 ゲート電極接続ワイヤ
122 エミッタセンス電極接続ワイヤ
201c コレクタ電極接合部
201e エミッタ電極接合部
202 重畳部
202t 突出部
t1 第1の間隔
t2 第2の間隔
Claims (13)
- スイッチング素子及び還流ダイオードが実装された第1の半導体実装基板と、スイッチング素子及び還流ダイオードが実装された第2の半導体実装基板とを備えるとともに、前記2枚の半導体実装基板上のコレクタ配線及びエミッタ配線を電気的に並列接続する一組のコレクタ電極とエミッタ電極を備え、さらに絶縁材が充填されてなる半導体パワーモジュールにおいて、
前記コレクタ電極と前記エミッタ電極は対向して前記絶縁材外部で第1の間隔が設けられ、前記絶縁材内部では、該第1の間隔より小さい第2の間隔が設けられており、
平面視して、前記コレクタ電極端子を上側、前記エミッタ電極端子を下側とした場合、前記半導体実装基板上の前記コレクタ配線と前記コレクタ電極との接合部であるコレクタ電極接合部及びエミッタ配線とエミッタ電極との接合部であるエミッタ電極接合部が、上下方向の位置が等しく、2mm以上4mm以下の間隔で左右に隣接されていると共に、上側に配置された前記第1の半導体実装基板上の前記コレクタ電極接合部と下側に配置された前記第2の半導体実装基板の前記コレクタ電極接合部、及び第1の半導体実装基板上のエミッタ電極接合部と第2の半導体実装基板のエミッタ電極接合部のそれぞれが、左右方向の位置が等しく配置されている
ことを特徴とする半導体パワーモジュール。 - 前記コレクタ電極と前記エミッタ電極は、それぞれ前記絶縁材内部で、前記半導体実装基板面と平行な面を有し、前記コレクタ電極と前記エミッタ電極の半導体実装基板に平行な面は、前記第2の間隔として1mm以上2mm以下の距離で重畳部を有している
ことを特徴とする請求項1に記載の半導体パワーモジュール。 - 前記コレクタ電極及び前記エミッタ電極は、前記絶縁物内の前記半導体実装基板と平行な面と、配線との接合部を繋ぐ足部を備えており、前記上側に配置された第1の半導体実装基板と繋がる足部は上方向に取り出され、前記下側に配置された第2の半導体実装基板と繋がる足部は下方向に取り出される
ことを特徴とする請求項2に記載の半導体パワーモジュール。 - 前記コレクタ電極接合部と前記エミッタ電極接合部で、左右方向で電極端子面からより近い位置に電極接合部を有する電極の前記半導体実装基板と平行な面は、電極端子面からより遠い位置に電極接合部を有する電極の電極接合部の左右方向端部位置まで伸びている突出部を有する
ことを特徴とする請求項3に記載の半導体パワーモジュール。 - 前記コレクタ電極と前記エミッタ電極は、前記絶縁材外部において前記半導体実装基板側に平行な電極端子面を有し、該電極端子面の互いに向かい合う辺で前記半導体実装基板側に屈曲し、前記絶縁物内部に挿入される
ことを特徴とする請求項3に記載の半導体パワーモジュール。 - 前記コレクタ電極接合部は、前記半導体実装基板上で、左右方向左端部上下方向中央部に設けた
ことを特徴とする請求項1から請求項5のいずれか1項に記載の半導体パワーモジュール。 - 前記コレクタ電極接合部は、上側に配置された第1の半導体実装基板上で、左右方向左端部上下方向下部に、下側に配置された第2の半導体実装基板上で、左右方向左端部上下方向上部にそれぞれ設けた
ことを特徴とする請求項1から請求項5のいずれか1項に記載の半導体パワーモジュール。 - 前記半導体実装基板上に4つのスイッチング素子と2つの還流ダイオードが搭載されており、前記スイッチング素子は前記半導体実装基板上の左上端、左下端、右上端、右下端部にそれぞれ搭載され、前記還流ダイオードは左右方向中央の上下方向上端部及び上下方向下端部に搭載された
ことを特徴とする請求項6に記載の半導体パワーモジュール。 - 前記半導体実装基板上に4つのスイッチング素子と4つの還流ダイオードが搭載されており、前記スイッチング素子と前記還流ダイオードが上下方向及び左右方向で交互に配置された
ことを特徴とする請求項7に記載の半導体パワーモジュール。 - 前記重畳部の電極間に絶縁性樹脂が挿入された
ことを特徴とする請求項2から請求項5のいずれか1項に記載の半導体パワーモジュール。 - 前記スイッチング素子は、IGBT(Insulated Gate Bipolar Transistor)である
ことを特徴とする請求項1から請求項5のいずれか1項に記載の半導体パワーモジュール。 - 前記スイッチング素子は、パワーMOSFET(Metal Oxide Semiconductor Field Effect Transistor)である
ことを特徴とする請求項1から請求項5のいずれか1項に記載の半導体パワーモジュール。 - スイッチング素子及び還流ダイオードが実装された第1の半導体実装基板と、スイッチング素子及び還流ダイオードが実装された第2の半導体実装基板とを備えるとともに、前記2枚の半導体実装基板上のコレクタ配線及びエミッタ配線を電気的に並列接続する一組のコレクタ電極とエミッタ電極を備え、さらに絶縁材が充填されてなる半導体パワーモジュールにおいて、
前記コレクタ電極と前記エミッタ電極は対向して前記絶縁材外部で第1の間隔が設けられ、前記絶縁材内部では、該第1の間隔より小さい第2の間隔が設けられており、
前記コレクタ電極と前記エミッタ電極は、それぞれ前記絶縁材外部で、電気的接続面である電極端子面を有し、それぞれ前記絶縁材内部で、前記半導体実装基板面と平行な面を有し、前記コレクタ電極と前記エミッタ電極の半導体実装基板に平行な面は、1mm以上2mm以下の距離で重畳部を有しているとともに、
前記コレクタ電極と前記コレクタ配線の接合部と前記エミッタ電極と前記エミッタ配線の接合部で、前記電極端子面からより近い位置に電極接合部を有する電極の前記半導体実装基板と平行な面は、電極端子面からより遠い位置に電極接合部を有する電極の電極接合部の端部位置まで伸びている突出部を有する
ことを特徴とする半導体パワーモジュール。
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US11574859B2 (en) * | 2020-09-28 | 2023-02-07 | Wolfspeed, Inc. | Power module having an elevated power plane with an integrated signal board and process of implementing the same |
CN112582369A (zh) * | 2020-12-15 | 2021-03-30 | 华芯威半导体科技(北京)有限责任公司 | 一种引线端子及使用该引线端子的功率模块 |
WO2024252605A1 (ja) * | 2023-06-08 | 2024-12-12 | 三菱電機株式会社 | 半導体装置 |
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JP3228839B2 (ja) * | 1994-09-07 | 2001-11-12 | 株式会社日立製作所 | 電力用半導体装置 |
US5956231A (en) * | 1994-10-07 | 1999-09-21 | Hitachi, Ltd. | Semiconductor device having power semiconductor elements |
JP3480771B2 (ja) | 1995-12-20 | 2003-12-22 | 三菱電機株式会社 | 半導体装置 |
JP3695260B2 (ja) * | 1999-11-04 | 2005-09-14 | 株式会社日立製作所 | 半導体モジュール |
JP4603956B2 (ja) | 2005-08-26 | 2010-12-22 | 日立オートモティブシステムズ株式会社 | 電力変換装置 |
JP4859443B2 (ja) | 2005-11-17 | 2012-01-25 | 日立オートモティブシステムズ株式会社 | 電力変換装置 |
JP4434181B2 (ja) | 2006-07-21 | 2010-03-17 | 株式会社日立製作所 | 電力変換装置 |
JP2008091809A (ja) * | 2006-10-05 | 2008-04-17 | Mitsubishi Electric Corp | 半導体モジュール |
JP4300434B2 (ja) * | 2007-10-09 | 2009-07-22 | タカラ産業株式会社 | 戸車 |
JP4988665B2 (ja) | 2008-08-06 | 2012-08-01 | 日立オートモティブシステムズ株式会社 | 半導体装置および半導体装置を用いた電力変換装置 |
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- 2012-07-11 CN CN201210240778.0A patent/CN102881682B/zh not_active Expired - Fee Related
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US10658344B2 (en) | 2018-09-14 | 2020-05-19 | Kabushiki Kaisha Toshiba | Semiconductor device |
US10957673B2 (en) | 2018-09-14 | 2021-03-23 | Kabushiki Kaisha Toshiba | Semiconductor device |
Also Published As
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US20130015496A1 (en) | 2013-01-17 |
JP2013021107A (ja) | 2013-01-31 |
DE102012212119A1 (de) | 2013-01-17 |
CN102881682A (zh) | 2013-01-16 |
CN102881682B (zh) | 2015-03-25 |
US8736043B2 (en) | 2014-05-27 |
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