JP2008027993A - 電力用半導体装置 - Google Patents

電力用半導体装置 Download PDF

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JP2008027993A
JP2008027993A JP2006196259A JP2006196259A JP2008027993A JP 2008027993 A JP2008027993 A JP 2008027993A JP 2006196259 A JP2006196259 A JP 2006196259A JP 2006196259 A JP2006196259 A JP 2006196259A JP 2008027993 A JP2008027993 A JP 2008027993A
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case
resin package
power semiconductor
power
semiconductor element
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JP4760585B2 (ja
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Hidetoshi Nakanishi
英俊 中西
Toshitaka Sekine
敏孝 関根
Taichi Obara
太一 小原
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Priority to JP2006196259A priority Critical patent/JP4760585B2/ja
Priority to TW095143710A priority patent/TWI334216B/zh
Priority to US11/610,624 priority patent/US7449726B2/en
Priority to EP06026107.0A priority patent/EP1881530B1/en
Priority to KR1020070056555A priority patent/KR100898774B1/ko
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Abstract

【課題】ケース型の電力用半導体装置において、生産性に優れ、かつケースの再利用が容易なリサイクル性に優れた電力用半導体装置を得る。
【解決手段】電力用半導体素子及び制御用半導体素子をリードフレームの表主面に搭載してモールド樹脂で封止した樹脂パッケージと、樹脂パッケージから導出され、電力用半導体素子と電気的に接続された電力端子と、樹脂パッケージから導出され、制御用半導体素子と電気的に接続された制御端子と、樹脂パッケージと分離可能に構成され、樹脂パッケージを囲繞する筒状のケースとを有し、電力端子及び制御端子は、ケースに設けられたリード挿入口からそれぞれ導出され、電力端子のケースから導出された部分は、ケースの端面に沿って折り曲げられている。
【選択図】図1

Description

本発明は、電力用半導体素子及び制御用半導体素子をケースで囲繞するケース型の電力用半導体装置に関し、特に生産性に優れ、かつケースの再利用が容易なリサイクル性に優れた電力用半導体装置に関するものである。
近年、産業用モータコントロールやサーボ用途に使用されるIGBTモジュール(InsuIated Gate Bipolar Transistor)は、IPM化の要求が高くなっている。ここで、IPMは、電力を制御するパワーMOSFETやIGBTなどのパワーデバイスの駆動回路や自己保護機能を組み込んだパワーモジュールである。
民生用としてモールド型IPMが使用されている。このモールド型IPMは、ICとパワー半導体チップ(IGBT、ダイオード)をCuフレームにダイマウントし、エポキシモールド樹脂で固めたものである。また、モールド型IPMにヒートシンクを設けて放熱性を向上させたものも提案されている(例えば、特許文献1参照)。
一方、産業用小・中容量IPM(600V/50A以上)としてケース型IPMが使用されている。図3は、従来のケース型IPMを示す断面図であり、図4はその上面図である。インサートケース1内には、電力用半導体素子としてIGBTチップ2及びダイオード3が搭載された絶縁基板4と、制御用半導体素子として制御IC、抵抗及びコンデンサを搭載した実装基板5が組み込まれている。そして、これらは互いにAlワイヤ6で接続されている。
また、IGBTチップ2及びダイオード3は、インサートケース1に内蔵された電力端子7を介して外部に接続される。そして、実装基板5は、インサートケース1に内蔵された制御端子8を介して外部に接続される。また、IGBTチップ2及びダイオード3からの熱を放熱するために、絶縁基板4の裏面にCuベース9が形成されている。そして、インサートケース1の四隅にはケースリング10が設けられている。
特開2001−085613号公報
しかし、ケース型IPMは、モールド型IPMと比較して、部品点数が多く、組立コストが高いため生産性が劣っていた。また、ケース型IPMにおいて、モールド型IPMと同様にケース内に樹脂を充填した場合、ケースを再利用することができなくなるという問題があった。
本発明は、上述のような課題を解決するためになされたもので、その目的は、ケース型の電力用半導体装置において、生産性に優れ、かつケースの再利用が容易なリサイクル性に優れた電力用半導体装置を得るものである。
本発明に係る電力用半導体装置は、電力用半導体素子及び制御用半導体素子をリードフレームの表主面に搭載してモールド樹脂で封止した樹脂パッケージと、樹脂パッケージから導出され、電力用半導体素子と電気的に接続された電力端子と、樹脂パッケージから導出され、制御用半導体素子と電気的に接続された制御端子と、樹脂パッケージと分離可能に構成され、樹脂パッケージを囲繞する筒状のケースとを有し、電力端子及び制御端子は、ケースに設けられたリード挿入口からそれぞれ導出され、電力端子のケースから導出された部分は、ケースの端面に沿って折り曲げられている。本発明のその他の特徴は以下に明らかにする。
本発明により、ケース型の電力用半導体装置において、生産性に優れ、かつケースの再利用が容易なリサイクル性に優れた電力用半導体装置を得ることができる。
実施の形態1.
図1は、本発明の実施の形態1に係る電力用半導体装置を示す断面図である。リードフレーム11の表主面に、IGBTチップやダイオードなどの電力用半導体素子12と、制御ICなどの制御用半導体素子13とが搭載されている。そして、これらは互いにAlワイヤ14を介して電気的に接続されている。また、電力用半導体素子12はCu端子15を介して電力端子16に電気的に接続され、制御用半導体素子13はAlワイヤ14を介して制御端子17に電気的に接続されている。
そして、リードフレーム11の裏主面に、絶縁シート18を介してヒートシンク19が配設されている。これらをモールド樹脂20で封止することで樹脂パッケージ21が形成されている。また、電力端子16及び制御端子17は樹脂パッケージ21から導出されている。そして、ヒートシンク19の外側面の一部は樹脂パッケージ21から露出している。このヒートシンク19により、樹脂パッケージ21の放熱性を高めることができる。具体的には600V/50Aで熱抵抗が0.6℃/Wであり、従来のケース型IPMと同程度の熱抵抗を達成できる。なお、ヒートシンク19の固定手段は必要ではない。
樹脂パッケージ21は、プラスチックからなる筒状のインサートケース22により囲繞されている。そして、電力端子16及び制御端子17は、インサートケース22に設けられたリード挿入口23からそれぞれ導出されている。さらに、電力端子16のインサートケース22から導出された部分は、インサートケース22の端面に沿って折り曲げられている。なお、この電力端子16の折り曲げ部に外部配線(不図示)を接触させ、両者にねじを貫通させることにより、両者を接続する。
以上説明したように、一部にモールド型IPMの構造を採用したことにより、従来のケース型IPMに比べて組立部品の削減とコスト低減が可能になり、生産性に優れた電力用半導体装置を得ることができる。さらに、本実施の形態に係る電力用半導体装置は、従来のケース型IPMと電力端子・制御端子の位置が外形上変わらないため、顧客は従来のケース型IPMと同じ組み込み方法で対応することができ、装置を変更する必要がない。
また、インサートケース22内にモールド樹脂20を充填せずに、インサートケース22を樹脂パッケージ21と分離可能に構成している。これにより、電力用半導体素子12や制御用半導体素子13等が損傷した場合に、樹脂パッケージ21のみを交換することができる。従って、ケースの再利用が容易なリサイクル性に優れた電力用半導体装置を得ることができる。
また、ヒートシンク19の外周縁は、樹脂パッケージ21の筐体の外周縁から突出し、インサートケース22の開口端緑に嵌合されている。これにより、樹脂パッケージ21をインサートケース22に固定する固定手段を必要としないため、組立性、即ち生産性に優れた電力用半導体装置を提供することができる。
実施の形態2.
図2は、本発明の実施の形態2に係る電力用半導体装置を示す断面図である。本実施の形態では、ヒートシンク19の外周縁は、樹脂パッケージ21の筐体の外周縁から突出し、インサートケース22の開口端緑にボルト24により結合されている。その他の構成は実施の形態1と同様である。
これにより、部品点数が少なく、組立性、即ち生産性に優れた電力用半導体装置を提供することができる。また、実施の形態1よりも樹脂パッケージとケースの取り付け強度が強くなる。
本発明の実施の形態1に係る電力用半導体装置を示す断面図である。 本発明の実施の形態2に係る電力用半導体装置を示す断面図である。 従来のケース型IPMを示す断面図である 従来のケース型IPMを示す上面図である。
符号の説明
11 リードフレーム
12 電力用半導体素子
13 制御用半導体素子
16 電力端子
17 制御端子
19 ヒートシンク
20 モールド樹脂
21 樹脂パッケージ
22 インサートケース
23 リード挿入口
24 ボルト

Claims (4)

  1. 電力用半導体素子及び制御用半導体素子をリードフレームの表主面に搭載してモールド樹脂で封止した樹脂パッケージと、
    前記樹脂パッケージから導出され、前記電力用半導体素子と電気的に接続された電力端子と、
    前記樹脂パッケージから導出され、前記制御用半導体素子と電気的に接続された制御端子と、
    前記樹脂パッケージと分離可能に構成され、前記樹脂パッケージを囲繞する筒状のケースとを有し、
    前記電力端子及び前記制御端子は、前記ケースに設けられたリード挿入口からそれぞれ導出され、
    前記電力端子の前記ケースから導出された部分は、前記ケースの端面に沿って折り曲げられていることを特徴とする電力用半導体装置。
  2. 前記樹脂パッケージは、前記リードフレームの裏主面に配設され、外側面の一部が前記樹脂パッケージから露出しているヒートシンクを更に有することを特徴とする請求項1に記載の電力用半導体装置。
  3. 前記ヒートシンクの外周縁は、前記樹脂パッケージの筐体の外周縁から突出し、前記ケースの開口端緑に嵌合されていることを特徴とする請求項2に記載の電力用半導体装置。
  4. 前記ヒートシンクの外周縁は、前記樹脂パッケージの筐体の外周縁から突出し、前記ケースの開口端緑にボルトにより結合されていることを特徴とする請求項2に記載の電力用半導体装置。
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101834267A (zh) * 2010-04-30 2010-09-15 深圳市奥伦德元器件有限公司 平面支架及封装方法
JP2013051300A (ja) * 2011-08-31 2013-03-14 Sanken Electric Co Ltd 半導体モジュール
JP2013225555A (ja) * 2012-04-20 2013-10-31 Mitsubishi Electric Corp 半導体装置および半導体装置の製造方法
JP5661183B2 (ja) * 2012-02-13 2015-01-28 パナソニックIpマネジメント株式会社 半導体装置およびその製造方法
US9190397B2 (en) 2012-02-14 2015-11-17 Mitsubishi Electric Corporation Semiconductor device
WO2018193581A1 (ja) * 2017-04-20 2018-10-25 三菱電機株式会社 電力変換装置
JP2018182220A (ja) * 2017-04-20 2018-11-15 三菱電機株式会社 電力変換装置
JP2019036677A (ja) * 2017-08-21 2019-03-07 三菱電機株式会社 パワーモジュールおよび電力変換装置

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101221807B1 (ko) * 2006-12-29 2013-01-14 페어차일드코리아반도체 주식회사 전력 소자 패키지
CN201011655Y (zh) * 2007-01-10 2008-01-23 上海凯虹科技电子有限公司 一种大功率半导体器件的框架
JP5112101B2 (ja) * 2007-02-15 2013-01-09 株式会社東芝 半導体パッケージ
SI2149902T1 (sl) * 2007-05-18 2019-03-29 Sansha Electric Manufacturing Company, Limited Močnostni polprevodniški moduli in naprava za električni oblok, ki le-tega uporablja
CN101681907B (zh) * 2007-11-30 2012-11-07 松下电器产业株式会社 散热结构体基板和使用其的模块及散热结构体基板的制造方法
KR101454321B1 (ko) * 2008-01-22 2014-10-23 페어차일드코리아반도체 주식회사 절연 금속 기판을 구비하는 반도체 패키지 및 그 제조방법
DE102008031231B4 (de) * 2008-07-02 2012-12-27 Siemens Aktiengesellschaft Herstellungsverfahren für planare elektronsche Leistungselektronik-Module für Hochtemperatur-Anwendungen und entsprechendes Leistungselektronik-Modul
TW201011869A (en) * 2008-09-10 2010-03-16 Cyntec Co Ltd Chip package structure
US8076696B2 (en) * 2009-10-30 2011-12-13 General Electric Company Power module assembly with reduced inductance
CN102340233B (zh) * 2010-07-15 2014-05-07 台达电子工业股份有限公司 功率模块
JP2013016629A (ja) * 2011-07-04 2013-01-24 Mitsubishi Electric Corp 半導体モジュール
US9147637B2 (en) * 2011-12-23 2015-09-29 Infineon Technologies Ag Module including a discrete device mounted on a DCB substrate
JP5656907B2 (ja) * 2012-04-11 2015-01-21 三菱電機株式会社 パワーモジュール
JP5863599B2 (ja) * 2012-08-21 2016-02-16 三菱電機株式会社 パワーモジュール
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US10679929B2 (en) 2017-07-28 2020-06-09 Advanced Semiconductor Engineering Korea, Inc. Semiconductor package device and method of manufacturing the same
JP6939392B2 (ja) * 2017-10-17 2021-09-22 三菱電機株式会社 パワーモジュール
US11257768B2 (en) * 2017-12-13 2022-02-22 Mitsubishi Electric Corporation Semiconductor device and power conversion device
DE102018214059A1 (de) * 2018-08-21 2020-02-27 Robert Bosch Gmbh Gehäuserahmen für ein Steuergerät, welcher zur elektrischen Außenkontaktierung eines Schaltungsträgers des Steuergeräts geeignet ist
US11081422B2 (en) * 2019-03-14 2021-08-03 Toyota Motor Engineering & Manufacturing North America, Inc. Self-healing PDMS encapsulation and repair of power modules
CN112805830A (zh) * 2019-04-01 2021-05-14 富士电机株式会社 半导体模块
KR102418409B1 (ko) * 2020-06-30 2022-07-07 하나 세미컨덕터 (아유타야) 씨오., 엘티디 방열 클립을 구비한 전력 반도체 장치

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0278265A (ja) * 1988-09-14 1990-03-19 Nippon Inter Electronics Corp リードフレームおよびそのリードフレームを使用した複合半導体装置
JPH09153572A (ja) * 1995-11-30 1997-06-10 Mitsubishi Electric Corp 半導体装置
JPH10125898A (ja) * 1996-09-02 1998-05-15 Fuji Electric Co Ltd 無接点式半導体接触器
JP2003100987A (ja) * 2001-09-20 2003-04-04 Mitsubishi Electric Corp 半導体装置
JP2004064081A (ja) * 2003-08-08 2004-02-26 Hitachi Ltd 複合材料及びその用途
JP2006093255A (ja) * 2004-09-22 2006-04-06 Fuji Electric Device Technology Co Ltd パワー半導体モジュールおよびその製造方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6279653A (ja) 1985-10-03 1987-04-13 Fujitsu Ltd ハイブリツドicのパツケ−ジング構造
US6069401A (en) * 1996-10-29 2000-05-30 Kabushiki Kaisha Toshiba Semiconductor chip
JPH10335579A (ja) * 1997-05-27 1998-12-18 Toshiba Corp 大電力半導体モジュール装置
JP2001085613A (ja) 1999-09-13 2001-03-30 Hitachi Ltd トランスファモールド型パワーモジュール
JP4262453B2 (ja) 2002-07-15 2009-05-13 三菱電機株式会社 電力半導体装置
JP2006179856A (ja) * 2004-11-25 2006-07-06 Fuji Electric Holdings Co Ltd 絶縁基板および半導体装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0278265A (ja) * 1988-09-14 1990-03-19 Nippon Inter Electronics Corp リードフレームおよびそのリードフレームを使用した複合半導体装置
JPH09153572A (ja) * 1995-11-30 1997-06-10 Mitsubishi Electric Corp 半導体装置
JPH10125898A (ja) * 1996-09-02 1998-05-15 Fuji Electric Co Ltd 無接点式半導体接触器
JP2003100987A (ja) * 2001-09-20 2003-04-04 Mitsubishi Electric Corp 半導体装置
JP2004064081A (ja) * 2003-08-08 2004-02-26 Hitachi Ltd 複合材料及びその用途
JP2006093255A (ja) * 2004-09-22 2006-04-06 Fuji Electric Device Technology Co Ltd パワー半導体モジュールおよびその製造方法

Cited By (12)

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Publication number Priority date Publication date Assignee Title
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JP2013051300A (ja) * 2011-08-31 2013-03-14 Sanken Electric Co Ltd 半導体モジュール
JP5661183B2 (ja) * 2012-02-13 2015-01-28 パナソニックIpマネジメント株式会社 半導体装置およびその製造方法
JPWO2013121491A1 (ja) * 2012-02-13 2015-05-11 パナソニックIpマネジメント株式会社 半導体装置およびその製造方法
US9136193B2 (en) 2012-02-13 2015-09-15 Panasonic Intellectual Property Management Co., Ltd. Semiconductor device and method of manufacturing the same
US9190397B2 (en) 2012-02-14 2015-11-17 Mitsubishi Electric Corporation Semiconductor device
DE112012005457B4 (de) 2012-02-14 2018-07-12 Mitsubishi Electric Corporation Halbleitervorrichtung mit elektrisch isolierten Kommunikationsvorrichtungen zur Ansteuerung
JP2013225555A (ja) * 2012-04-20 2013-10-31 Mitsubishi Electric Corp 半導体装置および半導体装置の製造方法
WO2018193581A1 (ja) * 2017-04-20 2018-10-25 三菱電機株式会社 電力変換装置
JP2018182220A (ja) * 2017-04-20 2018-11-15 三菱電機株式会社 電力変換装置
JPWO2018193581A1 (ja) * 2017-04-20 2019-11-07 三菱電機株式会社 電力変換装置
JP2019036677A (ja) * 2017-08-21 2019-03-07 三菱電機株式会社 パワーモジュールおよび電力変換装置

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