WO2011104826A1 - 半導体モジュールの製造方法,半導体モジュールおよび製造装置 - Google Patents
半導体モジュールの製造方法,半導体モジュールおよび製造装置 Download PDFInfo
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- WO2011104826A1 WO2011104826A1 PCT/JP2010/052810 JP2010052810W WO2011104826A1 WO 2011104826 A1 WO2011104826 A1 WO 2011104826A1 JP 2010052810 W JP2010052810 W JP 2010052810W WO 2011104826 A1 WO2011104826 A1 WO 2011104826A1
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- metal layer
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Abstract
Description
[パワーモジュールの構成]
本形態のパワーモジュール100は,図1に示すように,発熱体である半導体素子10と,半導体素子10が実装される金属層20と,内部に冷媒流路を備えた冷却器30と,金属層20と冷却器30とを絶縁するとともに両者を結合する絶縁樹脂シート40と,冷却器30上に固定され,バスバー61を保持するバスバーハウジング60とを備えている。パワーモジュール100は,半導体素子10で生じた熱を,金属層20および絶縁樹脂シート40を介して冷却器30に放熱する。
続いて,パワーモジュール100の半導体素子10の実装を行うリフロー炉について説明する。本形態のリフロー炉200は,図2に示すように,ワーク1を収容する加熱室201と,加熱室201の上面側に位置し,輻射線を射出してワーク1を加熱する輻射加熱式のヒータ202と,加熱室201の下面側に位置し,ワーク1を載置するとともにワーク1を加熱するホットプレート203と,ヒータ202からの輻射線の通過を抑制する遮蔽板204,205と,加熱室201内に冷却風を吐出するエアブローガン206とを備えている。
続いて,上述したリフロー炉200を利用してパワーモジュール100の半田付けを行う手順を説明する。
[パワーモジュールの構成]
第2の形態にかかるパワーモジュール110は,図4に示すように,冷却器30の半導体素子10側の表面のうち,絶縁樹脂シート40と接していない部分を遮蔽膜50で被覆している。バスバーハウジング60は,遮蔽膜50上に固定される。
10 半導体素子
15 半田
20 金属層
30 冷却器
40 絶縁樹脂シート(絶縁接着層)
100 パワーモジュール(半導体モジュール)
200 リフロー炉
201 加熱室
202 輻射加熱式のヒータ
203 ホットプレート
204 遮蔽板
Claims (11)
- 半導体素子と,
前記半導体素子が実装される金属層と,
前記金属層とは熱膨張率が異なる素材で構成される冷却器と,
前記金属層と前記冷却器とを接着するとともに,前記金属層と前記冷却器とを電気的に絶縁する絶縁接着層と,
を備えた半導体モジュールの製造方法において,
前記金属層と前記冷却器とが前記絶縁接着層によって接着されて一体となっており,前記半導体素子が半田を介して前記金属層上に載置された被加熱体を,前記金属層と前記冷却器とのうち,熱膨張率が低い方の部材である低熱膨張部材が,高い方の部材である高熱膨張部材と比較して高温となるように前記被加熱体を加熱する実装工程を含むことを特徴とする半導体モジュールの製造方法。 - 請求項1に記載する半導体モジュールの製造方法において,
前記実装工程では,前記金属層を前記半田の溶融温度まで加熱し,前記冷却器をその熱膨張量が前記金属層の熱膨張量と略同等となるように加熱することを特徴とする半導体モジュールの製造方法。 - 請求項1または請求項2に記載する半導体モジュールの製造方法において,
前記実装工程では,
前記被加熱体の高さ方向の上側から前記被加熱体を加熱する第1加熱部材と,下側から前記被加熱体を加熱する第2加熱部材とによって,両側から前記被加熱部材を加熱し,前記第1加熱部材と前記第2加熱部材との少なくとも一方を,前記高熱膨張部材と前記低熱膨張部材との熱膨張量が略同等となるように制御することを特徴とする半導体モジュールの製造方法。 - 請求項1から請求項3のいずれか1つに記載する半導体モジュールの製造方法において,
前記実装工程では,
輻射加熱式の加熱手段によって前記被加熱体の高さ方向の前記半導体素子側から前記被加熱体を加熱し,前記加熱手段が前記被加熱体を加熱する間,前記冷却器の少なくとも前記半導体素子側の表面に,前記加熱手段からの輻射線を遮蔽する遮蔽部材を配置することを特徴とする半導体モジュールの製造方法。 - 請求項1から請求項4のいずれか1つに記載する半導体モジュールの製造方法において,
前記実装工程では,
前記高熱膨張部材を冷却しつつ前記被加熱体を加熱することを特徴とする半導体モジュールの製造方法。 - 半導体素子と,
前記半導体素子が半田によって実装された金属層と,
前記金属層よりも熱膨張率が高い素材で構成される冷却器と,
前記金属層と前記冷却器とを接着するとともに,前記金属層と前記冷却器とを電気的に絶縁する絶縁接着層と,
前記金属層から電気的に絶縁され,前記冷却器の前記半導体素子側の表面を被覆し,輻射線を遮蔽する遮蔽膜と,
を備えることを特徴とする半導体モジュール。 - 半導体素子と,
前記半導体素子が実装される金属層と,
前記金属層とは熱膨張率が異なる素材で構成される冷却器と,
前記金属層と前記冷却器とを接着するとともに,前記金属層と前記冷却器とを電気的に絶縁する絶縁接着層と,
を備えた半導体モジュールの製造装置において,
前記金属層と前記冷却器とが前記絶縁接着層によって接着されて一体となっており,前記半導体素子が半田を介して前記金属層上に載置された被加熱体を,収容する加熱室と,
前記金属層と前記冷却器とのうち,熱膨張率が低い方の部材である低熱膨張部材が,高い方の部材である高熱膨張部材と比較して高温となるように前記被加熱体を加熱する加熱手段と,
を備えることを特徴とする半導体モジュールの製造装置。 - 請求項7に記載する半導体モジュールの製造装置において,
前記加熱手段は,前記金属層を前記半田の溶融温度まで加熱し,前記冷却器をその熱膨張量が前記金属層の熱膨張量と略同等となるように加熱することを特徴とする半導体モジュールの製造装置。 - 請求項7または請求項8に記載する半導体モジュールの製造装置において,
前記加熱手段は,
前記被加熱体の高さ方向の上側から前記被加熱体を加熱する第1加熱部材と,
前記被加熱体の高さ方向の下側から前記被加熱体を加熱する第2加熱部材とを備え,
前記第1加熱部材と前記第2加熱部材との少なくとも一方を,前記高熱膨張部材と前記低熱膨張部材との熱膨張量が略同等となるように制御することを特徴とする半導体モジュールの製造装置。 - 請求項7から請求項9のいずれか1つに記載する半導体モジュールの製造装置において,
前記加熱手段は,前記被加熱体の高さ方向の前記半導体素子側から前記被加熱体を加熱する輻射加熱式の加熱手段であり,
前記加熱手段からの輻射線を遮蔽する遮蔽部材を備え,
前記加熱手段が前記被加熱体を加熱する間,前記冷却器の少なくとも前記半導体素子側の表面に,前記遮蔽部材を配置することを特徴とする半導体モジュールの製造装置。 - 請求項7から請求項10のいずれか1つに記載する半導体モジュールの製造装置において,
前記高熱膨張部材を冷却する冷却手段を備えることを特徴とする半導体モジュールの製造装置。
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- 2010-02-24 EP EP10846493.4A patent/EP2541594A4/en not_active Withdrawn
- 2010-02-24 JP JP2012501565A patent/JP5561356B2/ja not_active Expired - Fee Related
- 2010-02-24 WO PCT/JP2010/052810 patent/WO2011104826A1/ja active Application Filing
- 2010-02-24 CN CN201080064816.0A patent/CN102782836B/zh not_active Expired - Fee Related
- 2010-02-24 US US13/580,754 patent/US8791564B2/en not_active Expired - Fee Related
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JPH08213724A (ja) * | 1995-01-31 | 1996-08-20 | Mitsumi Electric Co Ltd | 回路基板 |
JP2000357870A (ja) * | 1999-06-15 | 2000-12-26 | Tamura Seisakusho Co Ltd | リフロー装置 |
JP2001358263A (ja) * | 2000-06-12 | 2001-12-26 | Hitachi Ltd | 半導体装置およびその回路形成方法 |
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See also references of EP2541594A4 |
Also Published As
Publication number | Publication date |
---|---|
EP2541594A4 (en) | 2016-12-07 |
JP5561356B2 (ja) | 2014-07-30 |
CN102782836A (zh) | 2012-11-14 |
JPWO2011104826A1 (ja) | 2013-06-17 |
US8791564B2 (en) | 2014-07-29 |
US20120319253A1 (en) | 2012-12-20 |
EP2541594A1 (en) | 2013-01-02 |
CN102782836B (zh) | 2016-03-09 |
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