JP2015156475A - 半導体装置及びその製造方法 - Google Patents
半導体装置及びその製造方法 Download PDFInfo
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- JP2015156475A JP2015156475A JP2014249164A JP2014249164A JP2015156475A JP 2015156475 A JP2015156475 A JP 2015156475A JP 2014249164 A JP2014249164 A JP 2014249164A JP 2014249164 A JP2014249164 A JP 2014249164A JP 2015156475 A JP2015156475 A JP 2015156475A
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- solder
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- H01L23/3675—Cooling facilitated by shape of device characterised by the shape of the housing
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- B23K1/008—Soldering within a furnace
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Abstract
【解決手段】半導体装置10は、第1ヒートシンク18上に、はんだ16を介して半導体素子12が積層配置され、半導体素子12上に、はんだ20を介してターミナル22が積層配置された状態で、はんだ16,20がともにリフローされてなる。ターミナル22は、積層の方向に垂直な面内において重さが偏っている。これにより、積層の方向からの投影視において、ターミナル22の重心位置Cgが、半導体素子12の中心位置C1と一致している。
【選択図】図4
Description
先ず、図1及び図2に基づき、半導体装置の概略構成について説明する。この半導体装置は、所謂1in1パッケージとして知られており、例えば車両のインバータ回路に組み入れられ、負荷をPWM制御するための装置として適用される。
本実施形態において、第1実施形態に示した半導体装置10及びその製造方法と共通する部分についての説明は割愛する。
本実施形態において、第1実施形態に示した半導体装置10及びその製造方法と共通する部分についての説明は割愛する。
本実施形態において、第1実施形態に示した半導体装置10及びその製造方法と共通する部分についての説明は割愛する。
本実施形態において、第1実施形態に示した半導体装置10及びその製造方法と共通する部分についての説明は割愛する。
本実施形態において、第1実施形態に示した半導体装置10及びその製造方法と共通する部分についての説明は割愛する。
本実施形態において、第1実施形態に示した半導体装置10及びその製造方法と共通する部分についての説明は割愛する。
本実施形態において、第7実施形態に示した半導体装置10及びその製造方法と共通する部分についての説明は割愛する。
Claims (12)
- 一面(12a)及び該一面と反対の裏面(12b)を有し、前記一面が、はんだ付けされるはんだ領域(12a1)と、はんだ付けされない非はんだ領域(12a2)と、を有し、前記裏面がはんだ付けされる半導体素子(12)と、
前記半導体素子の一面側に配置される第1金属部材(22)と、
前記半導体素子の裏面側に配置される第2金属部材(18)と、
前記半導体素子の前記はんだ領域と前記第1金属部材とを接続する第1はんだ(20)と、
前記半導体素子の前記裏面と前記第2金属部材とを接続する第2はんだ(16)と、
を備え、
前記第2金属部材上に、前記第2はんだを介して前記半導体素子が積層配置され、前記半導体素子上に、前記第1はんだを介して前記第1金属部材が積層配置された状態で、前記第1はんだ及び前記第2はんだのうち少なくとも第2はんだが溶融接合を提供する半導体装置であって、
前記積層の方向からの投影視において、前記第1金属部材の重心位置(Cg)が、前記半導体素子の中心位置(C1)と一致していることを特徴とする半導体装置。 - 前記積層の方向に垂直な面内において、前記第1金属部材(22)の重さが偏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金属部材(22)の厚みが部分的に異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金属部材(22)は、前記半導体素子(12)との対向面(22a)と反対の面(22b)に形成された欠け部(22c)を有することを特徴とする請求項3に記載の半導体装置。
- 前記第1金属部材(22)に対し、前記半導体素子(12)と反対側に配置された第3金属部材(32)と、
前記第1金属部材と前記第3金属部材とを接続する第3はんだ(30)と、
をさらに備えることを特徴とする請求項4に記載の半導体装置。 - 前記第1金属部材(22)は、前記半導体素子(12)との対向面(22a)に隣接する側面(22d)に設けられた突出部(22e)を有することを特徴とする請求項3に記載の半導体装置。
- 前記第1金属部材(22)は、前記半導体素子(12)との対向面(22a)に隣接する側面(22d)に開口する空洞部(22f)を有することを特徴とする請求項3に記載の半導体装置。
- 前記積層の方向に垂直な面内において、前記第1金属部材(22)を構成する材料の密度が部分的に異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。
- 前記積層の方向に垂直な面内において、前記半導体素子(12)の前記はんだ領域(12a1)の中心位置(C2)が、前記一面(12a)の中心位置(C1)に一致するように、前記はんだ領域と前記非はんだ領域(12a2)が分配されていることを特徴とする請求項1に記載の半導体装置。
- 前記積層の方向に垂直な第1方向において、前記はんだ領域(12a1)の一端側に前記非はんだ領域(12a2)の一部が位置するとともに、他端側に前記非はんだ領域の残りの少なくとも一部が位置し、
前記半導体素子(12)は、前記一端側の非はんだ領域に、複数種類の外部接続用パッド(40)を有するとともに、前記他端側の非はんだ領域に、前記一端側の非はんだ領域と同じ種類で同数の外部接続用パッドを有し、
前記一端側の非はんだ領域において、複数種類の前記外部接続用パッドは、前記第1方向に垂直な第2方向に沿って所定の順番で形成され、前記他端側の非はんだ領域において、前記外部接続用パッドは、前記一端側の非はんだ領域に形成された前記外部接続用パッドと並び順を同じにして、前記第2方向に沿って形成されていることを特徴とする請求項9に記載の半導体装置。 - 前記溶融接合として、前記第1はんだ及び前記第2はんだがリフロー接合を提供する請求項5に記載の半導体装置の製造方法であって、
前記欠け部(22c)を有する前記第1金属部材(22)の前記半導体素子(12)との対向面(22a)上に、前記第1はんだ(20)を予めはんだ付けするとともに、前記対向面と反対の面(22b)上に、前記欠け部を覆うように前記第3はんだ(30)を予めはんだ付けする予備はんだ工程と、
前記第2金属部材(18)上に前記第2はんだ(16)を介して前記半導体素子を配置し、前記半導体素子上に前記第1はんだを介して前記第1金属部材を配置し、この配置状態で前記第1はんだ及び前記第2はんだをリフローして、前記第2金属部材、前記半導体素子、及び前記第1金属部材が一体化された接続体(44)を形成する第1リフロー工程と、
前記第3はんだが前記第3金属部材(32)に対向するように、前記第3金属部材上に前記接続体を配置し、前記第2金属部材側から加圧した状態で、前記第3はんだをリフローする第2リフロー工程と、
を備えることを特徴とする半導体装置の製造方法。 - 前記溶融接合として、前記第1はんだ及び前記第2はんだがリフロー接合を提供する請求項5に記載の半導体装置の製造方法であって、
前記欠け部(22c)を有する前記第1金属部材(22)の前記半導体素子(12)との対向面(22a)上に、前記第1はんだ(20)を予めはんだ付けする予備はんだ工程と、
前記第2金属部材(18)上に前記第2はんだ(16)を介して前記半導体素子を配置し、前記半導体素子上に前記第1はんだを介して前記第1金属部材を配置し、この配置状態で前記第1はんだ及び前記第2はんだをリフローして、前記第2金属部材、前記半導体素子、及び前記第1金属部材が一体化された接続体(44)を形成する第1リフロー工程と、
前記第3金属部材(32)上に前記第3はんだ(30)を配置し、該第3はんだに前記第1金属部材が対向するように、前記第3金属部材上に前記接続体を配置し、この配置状態で、前記第2金属部材側から加圧しつつ前記第3はんだをリフローする第2リフロー工程と、
を備えることを特徴とする半導体装置の製造方法。
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JP2019091811A (ja) * | 2017-11-15 | 2019-06-13 | トヨタ自動車株式会社 | 半導体装置の製造方法 |
JPWO2019043950A1 (ja) * | 2017-09-04 | 2020-05-28 | 三菱電機株式会社 | 半導体モジュール及び電力変換装置 |
WO2020179239A1 (ja) * | 2019-03-06 | 2020-09-10 | 株式会社デンソー | 半導体装置 |
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CN113519050A (zh) * | 2019-03-06 | 2021-10-19 | 株式会社电装 | 半导体装置 |
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