JP2005117009A - 半導体装置およびその製造方法 - Google Patents
半導体装置およびその製造方法 Download PDFInfo
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- JP2005117009A JP2005117009A JP2004148933A JP2004148933A JP2005117009A JP 2005117009 A JP2005117009 A JP 2005117009A JP 2004148933 A JP2004148933 A JP 2004148933A JP 2004148933 A JP2004148933 A JP 2004148933A JP 2005117009 A JP2005117009 A JP 2005117009A
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- heat
- heat sink
- sealing resin
- semiconductor device
- radiation surface
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Abstract
【解決手段】 発熱素子10と、発熱素子10の一側に設けられ発熱素子10と熱的に接続された第1のヒートシンク30と、発熱素子10の他側に設けられ発熱素子10と熱的に接続された第2のヒートシンク40と、発熱素子10、第1のヒートシンク30および第2のヒートシンク40を包み込むように封止する封止樹脂80とを備える半導体装置100において、第1のヒートシンク30の放熱面30aおよび第2のヒートシンク40の放熱面40aが、封止樹脂80から露出しており、第1のヒートシンク30の放熱面30)と第2のヒートシンク40の放熱面40aとの平行度が、0.2mm以下である。
【選択図】 図1
Description
[装置構成等]
図1は、本発明の第1実施形態に係る半導体装置100の概略断面構成を示す図である。
次に、上記半導体装置100の製造方法について説明する。本半導体装置100は、たとえば、次のようにして製造することができる。
以上述べてきたように、本実施形態によれば、発熱素子10と、発熱素子10の一側に設けられ発熱素子10と熱的に接続された第1のヒートシンク30と、発熱素子10の他側に設けられ発熱素子10と熱的に接続された第2のヒートシンク40と、発熱素子10、第1のヒートシンク30および第2のヒートシンク40を包み込むように封止する封止樹脂80とを備える半導体装置において、第1のヒートシンク30の放熱面30aおよび第2のヒートシンク40の放熱面40aが、封止樹脂80から露出しており、第1のヒートシンク30の放熱面30aと第2のヒートシンク40の放熱面40aとの平行度が0.2mm以下であることを主たる特徴とする半導体装置100が提供される。
また、上記図1や図3では、半導体装置100、200は、発熱素子10が1個であったが、もちろん、複数個の発熱素子を有するものであってもよい。そのような半導体装置の例を本実施形態の変形例として、図5に示す。
図6は、本発明の第2実施形態に係る半導体装置の製造方法を説明するための図であり、本実施形態に係る半導体装置の製造方法において樹脂封止後のワークの様子を示す概略断面図である。
図7は、本発明の第3実施形態に係る半導体装置300の概略断面構成を示す図である。
図8は、本発明の第4実施形態に係る半導体装置400の概略断面構成を、示す図である。
上記実施形態の製造方法では、封止樹脂80による封止工程では、第1のヒートシンク30の放熱面30aおよび第2のヒートシンク40の放熱面40aの少なくとも一方を、封止樹脂80に埋没させるようにし、続いて、封止樹脂80に埋没しているヒートシンク30の放熱面30aを、その外側から封止樹脂80とともに研削もしくは切削することにより、封止樹脂80から露出させるようにしている。つまり、放熱面30aと封止樹脂80とを一括して除去するように研削もしくは切削を行うようにしている。
上記実施形態では、ヒートシンク30の放熱面30aを被覆している封止樹脂80に対して、研削もしくは切削を行うことにより、封止樹脂80を除去しつつ放熱面30aの露出、面の傾き調整を行っていた。
なお、本発明は、両側ヒートシンク構造を有する半導体装置において、第1のヒートシンクの放熱面および第2のヒートシンクの放熱面を封止樹脂から露出させるとともに、第1のヒートシンクの放熱面と第2のヒートシンクの放熱面との平行度を0.2mm以下としたことを要部としたものであり、他の細部については、適宜設計変更可能である。
30a…第1のヒートシンクの放熱面、40…第2のヒートシンク、
40a…第2のヒートシンクの放熱面、80…封止樹脂、
80a…封止樹脂に埋没している放熱面を被覆している部分の封止樹脂の表面、
80b…放熱面を被覆していない部分の封止樹脂の表面、
110…冷却器としての冷却ブロック。K9…離型剤。
Claims (19)
- 発熱素子(10)と、
前記発熱素子(10)の一側に設けられ、前記発熱素子(10)と熱的に接続された第1のヒートシンク(30)と、
前記発熱素子(10)の他側に設けられ、前記発熱素子(10)と熱的に接続された第2のヒートシンク(40)と、
前記発熱素子(10)、前記第1のヒートシンク(30)、および前記第2のヒートシンク(40)を包み込むように封止する封止樹脂(80)と、を備える半導体装置において、
前記第1のヒートシンク(30)の放熱面(30a)および前記第2のヒートシンク(40)の放熱面(40a)が、前記封止樹脂(80)から露出しており、
前記第1のヒートシンク(30)の放熱面(30a)と前記第2のヒートシンク(40)の放熱面(40a)との平行度が、0.2mm以下となっていることを特徴とする半導体装置。 - 前記第1のヒートシンク(30)の放熱面(30a)と前記第2のヒートシンク(40)の放熱面(40a)との平行度が、0.15mm以下となっていることを特徴とする請求項1に記載の半導体装置。
- 前記第1のヒートシンク(30)の放熱面(30a)と前記第2のヒートシンク(40)の放熱面(40a)との平行度が、0.1mm以下となっていることを特徴とする請求項2に記載の半導体装置。
- 前記第1のヒートシンク(30)の放熱面(30a)および前記第2のヒートシンク(40)の放熱面(40a)の外側に、それぞれ冷却器(110)が設けられていることを特徴とする請求項1ないし3のいずれか1つに記載の半導体装置。
- 発熱素子(10)の両側を第1のヒートシンク(30)、第2のヒートシンク(40)によって挟み込むとともに、これら両ヒートシンク(30、40)と前記発熱素子(10)とを熱的に接続した後、
前記第1のヒートシンク(30)の放熱面(30a)および前記第2のヒートシンク(40)の放熱面(40a)を露出させた状態で、前記発熱素子(10)、前記第1のヒートシンク(30)および前記第2のヒートシンク(40)を封止樹脂(80)によって包み込むように封止するようにした半導体装置の製造方法において、
前記封止樹脂(80)による封止工程では、前記第1のヒートシンク(30)の放熱面(30a)および前記第2のヒートシンク(40)の放熱面(40a)の少なくとも一方を、前記封止樹脂(80)に埋没させるようにし、
続いて、前記封止樹脂(80)に埋没している前記ヒートシンク(30)の放熱面(30a)を、その外側から前記封止樹脂(80)とともに研削もしくは切削することにより、前記封止樹脂(80)から露出させるようにしたことを特徴とする半導体装置の製造方法。 - 前記研削もしくは切削を行うことによって、前記第1のヒートシンク(30)の放熱面(30a)と前記第2のヒートシンク(40)の放熱面(40a)との平行度を、0.2mm以下とすることを特徴とする請求項5に記載の半導体装置の製造方法。
- 前記研削もしくは切削を行うことによって、前記第1のヒートシンク(30)の放熱面(30a)と前記第2のヒートシンク(40)の放熱面(40a)との平行度を、0.15mm以下とすることを特徴とする請求項6に記載の半導体装置の製造方法。
- 前記研削もしくは切削を行うことによって、前記第1のヒートシンク(30)の放熱面(30a)と前記第2のヒートシンク(40)の放熱面(40a)との平行度を、0.1mm以下とすることを特徴とする請求項7に記載の半導体装置の製造方法。
- 前記封止樹脂(80)による封止工程では、
前記封止樹脂(80)に埋没するべき前記放熱面(30a)、および、この封止樹脂(80)に埋没するべき前記放熱面(30a)を被覆する部分の前記封止樹脂(80)の表面(80a)を、前記放熱面(30a)を被覆しない部分の前記封止樹脂(80)の表面(80b)よりも段差を有して突出させるようにし、
この突出した部分に対して前記研削もしくは切削を行うようにしたことを特徴とする請求項5ないし8のいずれか1つに記載の半導体装置の製造方法。 - 発熱素子(10)の両側を第1のヒートシンク(30)、第2のヒートシンク(40)によって挟み込むとともに、これら両ヒートシンク(30、40)と前記発熱素子(10)とを熱的に接続した後、
前記第1のヒートシンク(30)の放熱面(30a)および前記第2のヒートシンク(40)の放熱面(40a)を露出させた状態で、前記発熱素子(10)、前記第1のヒートシンク(30)および前記第2のヒートシンク(40)を封止樹脂(80)によって包み込むように封止するようにした半導体装置の製造方法において、
前記封止樹脂(80)による封止工程では、前記第1のヒートシンク(30)の放熱面(30a)および前記第2のヒートシンク(40)の放熱面(40a)の少なくとも一方を、前記封止樹脂(80)に埋没させるようにし、
続いて、前記封止樹脂(80)を除去することにより、前記封止樹脂(80)に埋没している前記ヒートシンク(30)の放熱面(30a)を露出させた後、この露出した前記放熱面(30a)を研削もしくは切削するようにしたことを特徴とする半導体装置の製造方法。 - 前記露出した前記放熱面(30a)への研削もしくは切削を行うことによって、前記第1のヒートシンク(30)の放熱面(30a)と前記第2のヒートシンク(40)の放熱面(40a)との平行度を、0.2mm以下とすることを特徴とする請求項10に記載の半導体装置の製造方法。
- 前記露出した前記放熱面(30a)への研削もしくは切削を行うことによって、前記第1のヒートシンク(30)の放熱面(30a)と前記第2のヒートシンク(40)の放熱面(40a)との平行度を、0.15mm以下とすることを特徴とする請求項11に記載の半導体装置の製造方法。
- 前記露出した前記放熱面(30a)への研削もしくは切削を行うことによって、前記第1のヒートシンク(30)の放熱面(30a)と前記第2のヒートシンク(40)の放熱面(40a)との平行度を、0.1mm以下とすることを特徴とする請求項12に記載の半導体装置の製造方法。
- 前記封止樹脂(80)による封止工程では、
前記封止樹脂(80)に埋没するべき前記放熱面(30a)、および、この封止樹脂(80)に埋没するべき前記放熱面(30a)を被覆する部分の前記封止樹脂(80)の表面(80a)を、前記放熱面(30a)を被覆しない部分の前記封止樹脂(80)の表面(80b)よりも段差を有して突出させるようにし、
この突出した部分に対して前記封止樹脂(80)の除去および前記露出した前記放熱面(30a)への研削もしくは切削を行うようにしたことを特徴とする請求項10ないし13のいずれか1つに記載の半導体装置の製造方法。 - 前記封止樹脂(80)の除去は、レーザ、水または砥粒を用いた加工によって行うようにしたことを特徴とする請求項10ないし14のいずれか1つに記載の半導体装置の製造方法。
- 前記封止樹脂(80)の除去はレーザを用いた加工によって行うようにし、前記レーザとしてCO2レーザまたはYAGレーザを用いることを特徴とする請求項15に記載の半導体装置の製造方法。
- 前記封止樹脂(80)の除去は水を用いた加工によって行うようにし、前記水を用いた加工としてウォータージェット加工を用いることを特徴とする請求項15に記載の半導体装置の製造方法。
- 前記封止樹脂(80)の除去は砥粒を用いた加工によって行うようにし、前記砥粒を用いた加工としてショットブラストを用いることを特徴とする請求項15に記載の半導体装置の製造方法。
- 前記封止樹脂(80)に埋没するべき前記放熱面(30a)に離型剤(K9)を塗布した後に、前記封止樹脂(80)による封止工程を行うことによって、当該放熱面(30a)と封止樹脂(80)との界面を剥離させておき、
当該界面が剥離している部位において前記封止樹脂(80)をはがすことにより、前記封止樹脂(80)の除去を行うようにしたことを特徴とする請求項10ないし14のいずれか1つに記載の半導体装置の製造方法。
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JP6644196B1 (ja) | 2019-02-01 | 2020-02-12 | 三菱電機株式会社 | 半導体装置およびその製造方法ならびに電力変換装置 |
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KR20250023561A (ko) * | 2022-06-22 | 2025-02-18 | 아메리칸 액슬 앤드 매뉴팩쳐링, 인코포레이티드 | 히트 싱크형 전력 반도체의 어레이 |
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JP4479121B2 (ja) | 2001-04-25 | 2010-06-09 | 株式会社デンソー | 半導体装置の製造方法 |
US7145254B2 (en) * | 2001-07-26 | 2006-12-05 | Denso Corporation | Transfer-molded power device and method for manufacturing transfer-molded power device |
TW498516B (en) * | 2001-08-08 | 2002-08-11 | Siliconware Precision Industries Co Ltd | Manufacturing method for semiconductor package with heat sink |
JP3627738B2 (ja) * | 2001-12-27 | 2005-03-09 | 株式会社デンソー | 半導体装置 |
DE10246283B3 (de) * | 2002-10-02 | 2004-03-25 | Infineon Technologies Ag | Verfahren zur Herstellung von Kanälen und Kavitäten in Halbleitergehäusen und elektronisches Bauteil mit derartigen Kanälen und Kavitäten |
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2004
- 2004-05-19 JP JP2004148933A patent/JP2005117009A/ja active Pending
- 2004-08-12 US US10/916,551 patent/US7049688B2/en not_active Expired - Lifetime
- 2004-09-07 DE DE102004043258.9A patent/DE102004043258B4/de not_active Expired - Fee Related
- 2004-09-16 CN CNB2004100789305A patent/CN100350598C/zh not_active Expired - Fee Related
-
2006
- 2006-03-02 US US11/365,674 patent/US20060145335A1/en not_active Abandoned
Cited By (6)
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JP2007109857A (ja) * | 2005-10-13 | 2007-04-26 | Denso Corp | 半導体モジュールの絶縁構造 |
JP2011217546A (ja) * | 2010-04-01 | 2011-10-27 | Hitachi Automotive Systems Ltd | パワーモジュール及びそれを用いた電力変換装置 |
WO2015107879A1 (ja) * | 2014-01-20 | 2015-07-23 | 株式会社デンソー | 半導体装置及びその製造方法 |
JP2015156475A (ja) * | 2014-01-20 | 2015-08-27 | 株式会社デンソー | 半導体装置及びその製造方法 |
US10049952B2 (en) | 2016-08-05 | 2018-08-14 | Toyota Jidosha Kabushiki Kaisha | Method of fabricating a semiconductor module with a inclined groove formed in resin side surface |
WO2025115274A1 (ja) * | 2023-11-29 | 2025-06-05 | Astemo株式会社 | パワー半導体装置 |
Also Published As
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US7049688B2 (en) | 2006-05-23 |
CN1599063A (zh) | 2005-03-23 |
CN100350598C (zh) | 2007-11-21 |
DE102004043258B4 (de) | 2015-01-29 |
DE102004043258A1 (de) | 2005-04-21 |
US20050056927A1 (en) | 2005-03-17 |
US20060145335A1 (en) | 2006-07-06 |
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