JP6129605B2 - 電力変換装置の製造方法及びそれに用いられる治具 - Google Patents
電力変換装置の製造方法及びそれに用いられる治具 Download PDFInfo
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- H01L24/34—Strap connectors, e.g. copper straps for grounding power devices; Manufacturing methods related thereto
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- H01L2224/36—Structure, shape, material or disposition of the strap connectors prior to the connecting process
- H01L2224/37—Structure, shape, material or disposition of the strap connectors prior to the connecting process of an individual strap connector
- H01L2224/3754—Coating
- H01L2224/37599—Material
- H01L2224/376—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
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- H01L2224/40—Structure, shape, material or disposition of the strap connectors after the connecting process of an individual strap connector
- H01L2224/401—Disposition
- H01L2224/40135—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
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- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
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- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
- H01L2224/491—Disposition
- H01L2224/4911—Disposition the connectors being bonded to at least one common bonding area, e.g. daisy chain
- H01L2224/49111—Disposition the connectors being bonded to at least one common bonding area, e.g. daisy chain the connectors connecting two common bonding areas, e.g. Litz or braid wires
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- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
- H01L2224/491—Disposition
- H01L2224/4912—Layout
- H01L2224/49175—Parallel arrangements
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- H01L2224/732—Location after the connecting process
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- H01L2224/83—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 layer connector
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- H01L2224/84—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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- H01L24/34—Strap connectors, e.g. copper straps for grounding power devices; Manufacturing methods related thereto
- H01L24/36—Structure, shape, material or disposition of the strap connectors prior to the connecting process
- H01L24/37—Structure, shape, material or disposition of the strap connectors prior to the connecting process of an individual strap connector
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- 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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Description
前記電力変換装置は、前記リードの一端部に、前記バスバーに対して当接又は所定間隔離間し、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の間に載置された半田を加熱し、前記鉛直壁と前記屈曲部とを互いに前記半田によって接合する接合工程を有し、前記接合工程において、前記バスバーに加熱手段を当接させ加熱した状態で前記ケーシングを保持する治具が用いられ、
前記治具は、前記半導体素子に当接する前記リードのチップ接続部を押圧し、該リードを位置決めして固定する押圧体を有し、
前記接合工程を行う前に、前記電力変換装置を構成するヒートシンクに対して前記ケーシングを載置すると共に前記半田を介して載置する工程と、
基板に対して前記半田を介して複数の半導体素子を配置する工程と、
前記複数の半導体素子を前記リードによって互いに接続する工程と、
前記押圧体によって前記チップ接続部を押圧する工程と、
を有することを特徴とする。
前記バスバーは鉛直方向に延在する鉛直壁を有し、前記リードの一端部には前記鉛直壁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、前記鉛直壁と前記屈曲部とが半田によって互いに接合された接合部が形成され、
前記治具は、前記ケーシングの載置されるベース体と、
前記ベース体に対して離間し、前記電力変換装置の上方を覆う遮蔽部材と、
前記バスバーに当接し加熱する加熱手段と、
を備え、
前記遮蔽部材には、少なくとも前記接合部に臨む位置に開口部が形成され、該開口部を通じて前記接合部近傍が加熱され、前記半導体素子に当接する前記リードのチップ接続部を該半導体素子側に向かって押圧する押圧体を備えることを特徴とする。
14…ヒートシンク 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 30a、30b…鉛直壁
38a、38b…水平部 40a、40b…チップ接続部
42…屈曲部 46…接合部
100…治具 102…ベースプレート
106…遮蔽プレート 108…押圧体
110…加熱ブロック 114…開口部
120…加熱部 150…連続炉
154…第1ヒータ 156…第2ヒータ
Claims (2)
- ケーシングにモールドされたバスバーに一端部が接続され、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の製造方法であって、
前記電力変換装置は、前記リードの一端部に、前記バスバーに対して当接又は所定間隔離間し、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の間に載置された半田を加熱し、前記鉛直壁と前記屈曲部とを互いに前記半田によって接合する接合工程を有し、前記接合工程において、前記バスバーに加熱手段を当接させ加熱した状態で前記ケーシングを保持する治具が用いられ、
前記治具は、前記半導体素子に当接する前記リードのチップ接続部を押圧し、該リードを位置決めして固定する押圧体を有し、
前記接合工程を行う前に、前記電力変換装置を構成するヒートシンクに対して前記ケーシングを載置すると共に前記半田を介して載置する工程と、
基板に対して前記半田を介して複数の半導体素子を配置する工程と、
前記複数の半導体素子を前記リードによって互いに接続する工程と、
前記押圧体によって前記チップ接続部を押圧する工程と、
を有することを特徴とする電力変換装置の製造方法。 - ケーシングにモールドされたバスバーに一端部が接続され、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の製造に用いられる治具であって、
前記バスバーは鉛直方向に延在する鉛直壁を有し、前記リードの一端部には前記鉛直壁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、前記鉛直壁と前記屈曲部とが半田によって互いに接合された接合部が形成され、
前記治具は、前記ケーシングの載置されるベース体と、
前記ベース体に対して離間し、前記電力変換装置の上方を覆う遮蔽部材と、
前記バスバーに当接し加熱する加熱手段と、
を備え、
前記遮蔽部材には、少なくとも前記接合部に臨む位置に開口部が形成され、該開口部を通じて前記接合部近傍が加熱され、前記半導体素子に当接する前記リードのチップ接続部を該半導体素子側に向かって押圧する押圧体を備えることを特徴とする電力変換装置の製造に用いられる治具。
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JP6517577B2 (ja) * | 2015-04-27 | 2019-05-22 | 株式会社ケーヒン | 電力変換装置の製造方法 |
JP6484100B2 (ja) * | 2015-04-27 | 2019-03-13 | 株式会社ケーヒン | 電力変換装置の製造方法 |
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JP3813098B2 (ja) * | 2002-02-14 | 2006-08-23 | 三菱電機株式会社 | 電力用半導体モジュール |
JP4720756B2 (ja) * | 2007-02-22 | 2011-07-13 | トヨタ自動車株式会社 | 半導体電力変換装置およびその製造方法 |
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US8283766B2 (en) * | 2010-09-02 | 2012-10-09 | Oracle America, Inc | Ramp-stack chip package with static bends |
US8686288B2 (en) * | 2011-05-31 | 2014-04-01 | Tesla Motors, Inc. | Power electronics interconnection for electric motor drives |
JP2013033901A (ja) * | 2011-06-29 | 2013-02-14 | Nissan Motor Co Ltd | 半導体装置 |
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