JP2017011221A - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP2017011221A JP2017011221A JP2015128039A JP2015128039A JP2017011221A JP 2017011221 A JP2017011221 A JP 2017011221A JP 2015128039 A JP2015128039 A JP 2015128039A JP 2015128039 A JP2015128039 A JP 2015128039A JP 2017011221 A JP2017011221 A JP 2017011221A
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 50
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 229910000679 solder Inorganic materials 0.000 abstract description 30
- 239000000758 substrate Substances 0.000 abstract description 14
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- 238000004519 manufacturing process Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 238000005476 soldering Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- -1 for example Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
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Abstract
【解決手段】おもて面に回路層を有する積層基板と、回路層にはんだ接合された筒状部品と、該筒状部品に挿入され該筒状部品と電気的に接続される外部端子と、を備えている。
筒状部品が、円筒部と円筒部の長手方向の一端に接続されたフランジ部とを有している。該フランジ部が、回路層に対向する第1突部、第2突部及び第3突部を備えている。第1突部と第2突部の間の距離、該第2突部と第3突部の間の距離及び該第3突部と第1突部の間の距離がそれぞれ該円筒部の内径よりも大きい。
【選択図】図6
Description
半導体装置は、おもて面に回路層を有する積層基板と、上記回路層にはんだ接合された筒状部品と、上記筒状部品に挿入され上記筒状部品と電気的に接続される外部端子と、を備えている。上記筒状部品が、円筒部と当該円筒部の長手方向の一端に接続されたフランジ部とを有している。上記フランジ部が、上記回路層に対向する第1突部、第2突部及び第3突部を備えている。上記第1突部と第2突部の間の距離、上記第2突部と第3突部の間の距離及び上記第3突部と第1突部の間の距離が、それぞれ上記円筒部の内径よりも大きい。
本発明の半導体装置の実施形態を、図面を用いて具体的に説明する。
図1は本発明の半導体装置の一実施形態である、パワー半導体モジュール1の一例の片側断面図である。図2は、図1のパワー半導体モジュール1の要部の拡大断面図である。
図5に外部端子7が挿入された筒状部品6の断面図を示す。回路層2bと第1フランジ部62とは、介在したはんだ4により電気的かつ機械的に接続されている。
はんだ接合時に第1突部66〜第3突部68は回路層2bに近接しているので、回路層2bと第1フランジ部62との接合時にフラックスやガスは平坦部65を通って第1フランジ部62の外方又は円筒部61へ抜ける。したがって、第1フランジ部62における平坦部65及び第1突部66〜第3突部68の形状は、はんだ接合時のフラックスやガスの抜け具合に影響を及ぼす。
本発明の実施形態2のパワー半導体モジュールは、先に述べた実施形態1のパワー半導体モジュールとは、筒状部品のみが相違しているので、以下では特徴的な筒状部品を説明する。図8に、本実施形態の筒状部品のフランジ部の平面図を示す。なお、図8の筒状部品について、図6に示した筒状部品6と同一部材には同一の符号を付しており、以下では重複する説明を省略する。
本発明の実施形態3のパワー半導体モジュールは、先に述べた実施形態1のパワー半導体モジュールとは、筒状部品のみが相違しているので、以下では特徴的な筒状部品を説明する。図10に、本実施形態の筒状部品のフランジ部の平面図を示す。なお、図10の筒状部品について、図6に示した筒状部品6と同一部材には同一の符号を付しており、以下では重複する説明を省略する。
第1フランジ部62Bは、第1突部66B、第2突部67B、第3突部68B及び第4突部69Bを備えている。これらの突部はそれぞれ略四角形を有している。第1突部66Bと第2突部67Bの間の距離L1、第2突部67Bと第3突部68Bの間の距離L2及び第3突部68Bと第1突部66Bの間の距離L3は、円筒部61の内径Dよりも大きい。距離L1、距離L2及び距離L3が円筒部61の内径Dよりも大きいことにより、筒状部品のはんだ接合時にはんだが飛散するのを抑制することができる。
2 積層基板
3A、3B、3C、3D 半導体チップ
5 ボンディングワイヤ
6、16、26 筒状部品
7 外部端子
8 ケース
9 ゲル
61 円筒部
62、62A、62B 第1フランジ部
63 第2フランジ部
64曲面部
65平坦部
66、66A、66B 第1突部
67、67A、67B 第2突部
68、68A、68B 第3突部
Claims (13)
- おもて面に回路層を有する積層基板と、前記回路層にはんだ接合された筒状部品と、前記筒状部品に挿入され前記筒状部品と電気的に接続される外部端子と、を備え、
前記筒状部品が、円筒部と前記円筒部の長手方向の一端に接続されたフランジ部とを有し、
前記フランジ部が、前記回路層に対向する第1突部、第2突部及び第3突部を備え、前記第1突部と第2突部の間の距離、前記第2突部と第3突部の間の距離及び前記第3突部と第1突部の間の距離がそれぞれ前記円筒部の内径よりも大きい半導体装置。 - 前記フランジ部は、前記円筒部と接続する曲面部を内周側に、前記曲面部に接続する円盤状の平坦部を外周側にそれぞれ備え、前記第1突部、第2突部及び第3突部は前記曲面部に配置されず、前記平坦部に配置された請求項1記載の半導体装置。
- 前記第1突部、第2突部及び第3突部が、前記フランジ部上に前記円筒部の中心軸に対して回転対称に配置された請求項2記載の半導体装置。
- 前記第1突部、第2突部及び第3突部は、同じ形状であり、前記平坦部の外周に接して配置され、前記第1突部の端部、前記第2突部の端部及び前記第3突部の端部のそれぞれの外周側の円弧を下底とみなした略等脚台形の外形を備え、前記第1突部の端部の一の脚と、前記一の脚に対向する前記第2突部の端部の他の脚が略平行である請求項3記載の半導体装置。
- 前記第1突部の外周側の円弧の長さが前記円筒部の内径の0.1倍以上2倍以下である請求項4記載の半導体装置。
- 前記円筒部の中心軸を通り、前記第1突部の外形に対し前記第2突部から遠い側の一点で接する線分を第1線分とし、前記円筒部の中心軸を通り、第2突部の外形に対し第1突部から遠い側の一点で接する線分を第2線分としたとき、
前記第1突部及び前記第2突部は、前記第1線分と前記第2線分とに挟まれた領域に配置され、
前記第3突部は、前記円筒部の中心軸に対し前記第1突部及び第2突部が配置された領域とは反対側で前記第1線分と前記第2線分とに挟まれた領域に配置されている、請求項2記載の半導体装置。 - 前記第1突部、第2突部及び第3突部が同一形状を有する請求項6記載の半導体装置。
- 前記筒状部品が、前記円筒部の長手方向の他端に接続された他のフランジ部をさらに有する請求項1または7に記載の半導体装置。
- 前記他のフランジ部は、前記第1突部、第2突部及び第3突部とそれぞれ同じ形状の突部が、前記第1突部、第2突部及び第3突部に対向する位置に配置されている請求項8記載の半導体装置。
- 前記フランジ部がさらに第n突部(nは4以上の整数)を備える請求項6記載の半導体装置。
- 前記第1突部、第2突部、第3突部及び第n突部が同一形状を有する請求項10記載の半導体装置。
- 前記筒状部品が、前記円筒部の長手方向の他端に接続された他のフランジ部をさらに有する請求項11記載の半導体装置。
- 前記他のフランジ部は、前記第1突部、第2突部、第3突部及び第n突部とそれぞれ同じ形状の突起が、前記第1突部、第2突部、第3突部及び第n突部に対向する位置に配置されている請求項12記載の半導体装置。
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