JP2008206363A - 半導体電力変換装置およびその製造方法 - Google Patents
半導体電力変換装置およびその製造方法 Download PDFInfo
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- JP2008206363A JP2008206363A JP2007042205A JP2007042205A JP2008206363A JP 2008206363 A JP2008206363 A JP 2008206363A JP 2007042205 A JP2007042205 A JP 2007042205A JP 2007042205 A JP2007042205 A JP 2007042205A JP 2008206363 A JP2008206363 A JP 2008206363A
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- bus bar
- electrode
- joining member
- power conversion
- semiconductor power
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- H01L2924/1901—Structure
- H01L2924/1904—Component type
- H01L2924/19041—Component type being a capacitor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
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Abstract
【解決手段】バスバー200aは、一体に成形されたリード部210aおよびバスバー部205aを有する。リード部210aは、バスバー部205aより分岐される形状にて設けられる。リード部210aの一部は、はんだ等の接合材160によって、トランジスタ電極150およびダイオード電極164と直接的に電気的に接合される接合部位215aを形成する。接合部位215aを含むリード部210aの肉厚t2は、バスバー部205aの肉厚t1(t2<t1)よりも薄くされる。
【選択図】図5
Description
また好ましくは、半導体電力変換装置は、非接合部材を取付けるための固定支柱と、非接合部材を介して固定支柱に装着される回路基板とをさらに備える。固定支柱は、絶縁材料で形成される。非接合部材は、固定支柱との取付け面の裏面に、非接合部材と一体的に設けられた突出部を有する。回路基板は、突出部と嵌合される装着孔と、導電部とを有する。導電部は、装着孔に突出部を接合することによって、非接合部材と回路基板上の回路要素との間の電気的接続が確保されるように構成される。
上記半導体電力変換装置によれば、複数個の半導体素子と接続されて温度上昇が発生し易いバスバーについても、接合部位の熱応力を緩和して断線故障を防止した上で、ボンディングワイヤを介さずに半導体素子の電極およびバスバー間を電気的に直接的に接合することができる。
図2を参照して、各アームには、代表的にはIGBTで構成されるトランジスタQ(トランジスタQ1〜Q6、あるいは図示しないコンバータ中のトランジスタを総括的に表記するもの)および、ダイオードD(逆並列ダイオードD1〜D6、あるいは図示しないコンバータ中のダイオードを総括的に表記するもの)が「半導体素子」として設けられる。
図10には、絶縁保護膜形成工程の第1の例が示される。
図13を参照して、絶縁保護膜形成のためのプロセスP200は、サブプロセスP250〜P280を含む。
Claims (16)
- 電力変換を行なうための半導体素子と、
前記半導体素子の電極と該半導体素子の外部の回路要素との間を電気的に接続するためのバスバーとを備え、
前記バスバーは、前記電極との接合部材および前記電極との非接合部材が一体的に成型され、かつ、前記接合部材の一部分により構成される電極との接合部位に作用する熱応力を軽減するための熱応力軽減機構を有するように構成される、半導体電力変換装置。 - 前記接合部材は、少なくとも前記接合部位の肉厚が前記非接合部材よりも薄くなるように構成される、請求項1記載の半導体電力変換装置。
- 前記接合部材は、前記接合部位に作用する熱応力に応じて変位可能な形状に構成された部位を、前記電極との非接合部位の少なくとも一部に有する、請求項1記載の半導体電力変換装置。
- 前記接合部材は、前記非接合部材の肉厚よりも薄い形状を有し、かつ、前記接合部位に作用する熱応力に応じて変位可能な形状に構成された部位を前記電極との非接合部位の少なくとも一部に有する、請求項1記載の半導体電力変換装置。
- 前記非接合部材は、前記回路要素との電気的接合部分を有し、
前記接合部材は、前記非接合部材から分岐され、かつ、前記非接合部材よりも肉厚が薄い形状で設けられる、請求項1から4のいずれか1項に記載の半導体電力変換装置。 - 前記非接合部材を取付けるための、絶縁材料で形成された固定支柱と、
前記非接合部材を介して前記固定支柱に装着される回路基板とをさらに備え、
前記非接合部材は、前記固定支柱との取付け面の裏面に、前記非接合部材と一体的に設けられた突出部を有し、
前記回路基板は、
前記突出部と嵌合される装着孔と、
前記装着孔に前記突出部を接合することによって、前記非接合部材と前記回路基板上の回路要素との間の電気的接続が確保されるように構成された導電部とを有する、請求項1記載の半導体電力変換装置。 - 前記バスバーは、
前記電極との非接合部位の表面を絶縁材料により被覆してなる第1の保護膜と、
前記電極と接合された状態にて前記電極との接合部位の表面に皮膜化された絶縁材料の熱硬化処理によって形成された第2の保護膜とをさらに含む、請求項1記載の半導体電力変換装置。 - 前記バスバーは、
前記電極と接合された状態にて前記接合部材および前記非接合部材の表面に皮膜化された絶縁材料の熱硬化処理により形成された保護膜をさらに含む、請求項1記載の半導体電力変換装置。 - 前記半導体素子は、制御電極の電位または電流に応じて、第1および第2の電流電極間の電流が制御されるように構成され、
前記バスバーは、前記制御電極を前記回路要素と電気的に接続する、請求項1から8のいずれか1項に記載の半導体電力変換装置。 - 前記半導体素子は、制御電極の電位または電流に応じて、第1および第2の電流電極間の電流が制御されるように構成され、
前記バスバーは、前記第1および第2の電流電極の一方を前記回路要素と電気的に接続する、請求項1から8のいずれか1項に記載の半導体電力変換装置。 - 前記バスバーは、複数個の前記半導体素子の電極と共通に電気的に接続される、請求項請求項1から8のいずれか1項に記載の半導体電力変換装置。
- 半導体素子の電極との接合部材および前記電極との非接合部材が一体的に成型され、かつ、前記接合部材が前記電極との接合部位に作用する熱応力を軽減するための熱応力軽減機構を有するように構成されたバスバーと、前記半導体素子の電極との間を電気的に接続する第1のプロセスと、
少なくとも、前記第1のプロセスにより形成された前記バスバーおよび前記電極の接合部位に対して絶縁保護膜を形成するための第2のプロセスとを備えた、半導体電力変換装置の製造方法。 - 前記バスバーのうちの前記電極との非接合部位の表面には、前に絶縁材料により該表面を被覆してなる第1の保護膜が前記第1のプロセスよりも前の段階で設けられ、
前記第2のプロセスは、
前記電極と接合された状態での前記電極との接合部位の表面に絶縁材料を皮膜化する第1のサブプロセスと、
前記第1のサブプロセスにより形成された皮膜を熱硬化処理して第2の保護膜を形成する第2のサブプロセスとを含む、請求項12記載の半導体電力変換装置の製造方法。 - 前記第1のサブプロセスは、ゾル状の絶縁樹脂をスプレーにて塗布することにより、前記接合部位の表面に絶縁材料を皮膜化する、請求項13記載の半導体電力変換装置の製造方法。
- 前記第2のプロセスは、
ゲル状の絶縁材料の充填により前記半導体素子および前記バスバーを浸漬する第1のサブプロセスと、
前記バスバーの前記接合部材および前記非接合部材の表面に絶縁材料の皮膜が残されるように、前記絶縁材料を排出して回収する第2のサブプロセスと、
前記第2のサブプロセスにより形成された皮膜を熱硬化処理して保護膜を形成する第3のサブプロセスとを含む、請求項13記載の半導体電力変換装置の製造方法。 - 前記第1のプロセスにおいて、前記非接合部材は絶縁材料で形成された固定支柱に取付けられ、
前記製造方法は、
前記非接合部材を介して回路基板を前記固定支柱に装着する第3のプロセスをさらに備え、
前記第3のプロセスは、
前記非接合部材の前記固定支柱との取付け面の裏面に前記非接合部材と一体的に設けられた突出部と、前記回路基板に設けられた装着孔とを嵌合する第1のサブプロセスと、
前記装着孔の側面に設けられて前記回路基板上の回路要素と電気的に接続される導電部と前記突出部とを接合して、前記導電部および前記突出部の間を電気的に接続する第2のサブプロセスとを含む、請求項12記載の半導体電力変換装置の製造方法。
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US8837150B2 (en) | 2009-09-15 | 2014-09-16 | Lisa Dräxlmaier GmbH | Electronic device for switching currents and method for producing the same |
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JP2012099785A (ja) * | 2010-11-01 | 2012-05-24 | Samsung Electro-Mechanics Co Ltd | パワーパッケージモジュール及びその製造方法 |
JP2013223384A (ja) * | 2012-04-18 | 2013-10-28 | Ihi Corp | 電力変換装置及び車両 |
JP2014033096A (ja) * | 2012-08-03 | 2014-02-20 | Toyota Industries Corp | 半導体装置 |
JP2014187818A (ja) * | 2013-03-25 | 2014-10-02 | Honda Motor Co Ltd | 電力変換装置 |
JP2014187817A (ja) * | 2013-03-25 | 2014-10-02 | Honda Motor Co Ltd | 電力変換装置の製造方法及びそれに用いられる治具 |
US9455238B2 (en) | 2013-03-25 | 2016-09-27 | Honda Motor Co., Ltd. | Power converter |
JP2014113053A (ja) * | 2014-03-20 | 2014-06-19 | Hitachi Automotive Systems Ltd | 電力変換装置 |
WO2016031462A1 (ja) * | 2014-08-28 | 2016-03-03 | 富士電機株式会社 | パワー半導体モジュール |
JPWO2016031462A1 (ja) * | 2014-08-28 | 2017-04-27 | 富士電機株式会社 | パワー半導体モジュール |
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WO2016084180A1 (ja) * | 2014-11-27 | 2016-06-02 | 三菱電機株式会社 | 半導体モジュールおよび半導体駆動装置 |
JP2018082597A (ja) * | 2016-11-18 | 2018-05-24 | トヨタ自動車株式会社 | 電気回路装置 |
JP2019193457A (ja) * | 2018-04-25 | 2019-10-31 | 日本電産エレシス株式会社 | インバータ制御装置 |
JP7206624B2 (ja) | 2018-04-25 | 2023-01-18 | 日本電産エレシス株式会社 | インバータ制御装置 |
WO2024150356A1 (ja) * | 2023-01-12 | 2024-07-18 | 三菱電機株式会社 | 駆動装置 |
Also Published As
Publication number | Publication date |
---|---|
DE112008000466B4 (de) | 2015-11-26 |
WO2008102914A1 (ja) | 2008-08-28 |
JP4720756B2 (ja) | 2011-07-13 |
DE112008000466T5 (de) | 2010-01-28 |
CN101622779A (zh) | 2010-01-06 |
US20100089607A1 (en) | 2010-04-15 |
US8058554B2 (en) | 2011-11-15 |
CN101622779B (zh) | 2013-03-27 |
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