JP2014187818A - 電力変換装置 - Google Patents
電力変換装置 Download PDFInfo
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- JP2014187818A JP2014187818A JP2013061255A JP2013061255A JP2014187818A JP 2014187818 A JP2014187818 A JP 2014187818A JP 2013061255 A JP2013061255 A JP 2013061255A JP 2013061255 A JP2013061255 A JP 2013061255A JP 2014187818 A JP2014187818 A JP 2014187818A
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- bus bar
- solder
- vertical wall
- angle
- bent portion
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L24/84—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a strap connector
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/00014—Technical content checked by a classifier the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
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Abstract
【解決手段】電力変換装置10を構成するケーシング12には、第1バスバー20と複数の半導体チップ18a、18bとを電気的に接続する接続リード24が設けられ、該接続リード24の一端部には、水平方向に対して所定角度だけ下方へと折曲された屈曲部42が形成され、前記第1バスバー20の鉛直壁30に臨むように設けられる。そして、鉛直に形成された第1バスバー20の鉛直壁30と屈曲部42とが鋭角となる接合角度Cで半田Hによって接合されると共に、前記鉛直壁30及び屈曲部42と半田Hの接触端部50とがなす濡れ角Dが90°未満となるように形成される。
【選択図】図2
Description
前記リードの一端部には、前記バスバーに対して所定間隔離間し、鉛直下方向に所定角度傾斜した屈曲部を有し、前記屈曲部に臨んで鉛直方向に延在する前記バスバーの鉛直壁と該屈曲部とが半田によって互いに接合されると共に、前記鉛直壁と直交する断面において、前記屈曲部と前記鉛直壁とのなす接合角度が鋭角に設定されることを特徴とする。
14…ヒートシンク 16…回路基板
18a、18b…半導体チップ 20…第1バスバー
22…第2バスバー 24…接続リード
26…絶縁部 30…鉛直壁
38a、38b…水平部 40a、40b…チップ接続部
42…屈曲部 46…空間
48…接合部 52a、52b…フィレット
Claims (5)
- 一端部がバスバーに接続され、他端部が半導体素子に接続されるリードを有し、該リードを通じて前記バスバーから前記半導体素子の電極へと電力供給を行う電力変換装置であって、
前記リードの一端部には、前記バスバーに対して所定間隔離間し、鉛直下方向に所定角度傾斜した屈曲部を有し、前記屈曲部に臨んで鉛直方向に延在する前記バスバーの鉛直壁と該屈曲部とが半田によって互いに接合されると共に、前記鉛直壁と直交する断面において、前記屈曲部と前記鉛直壁とのなす接合角度が鋭角に設定されることを特徴とする電力変換装置。 - 請求項1記載の電力変換装置において、
前記バスバーと前記半田の接触端部とのなす濡れ角が鋭角に設定されることを特徴とする電力変換装置。 - 請求項2記載の電力変換装置において、
前記接合角度と前記濡れ角とは、該接合角度の鋭角が大きくなるに従って前記濡れ角の角度が小さくなる相関関係を有することを特徴とする電力変換装置。 - 請求項1〜3のいずれか1項に記載の電力変換装置において、
前記リードには、前記屈曲部に対して他端部側となる一端部の一部に、該リードの延在方向に沿った水平部を有することを特徴とする電力変換装置。 - 請求項1〜4のいずれか1項に記載の電力変換装置において、
前記屈曲部と前記鉛直壁との間には、該鉛直壁の延在方向と直交する水平方向に沿って所定間隔の間隙が設けられることを特徴とする電力変換装置。
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JP2020024201A (ja) * | 2018-08-02 | 2020-02-13 | 東レ株式会社 | 欠点検査方法および欠点検査装置 |
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JP6239840B2 (ja) * | 2013-03-27 | 2017-11-29 | ローム株式会社 | 半導体装置および半導体装置の製造方法 |
JP6293030B2 (ja) * | 2014-10-09 | 2018-03-14 | 三菱電機株式会社 | 電力用半導体装置 |
CN107240581A (zh) * | 2016-03-29 | 2017-10-10 | 株式会社京浜 | 电力转换装置及电力转换装置的制造方法 |
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