JPWO2011033566A1 - 半導体装置とその製造方法 - Google Patents
半導体装置とその製造方法 Download PDFInfo
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- JPWO2011033566A1 JPWO2011033566A1 JP2010533360A JP2010533360A JPWO2011033566A1 JP WO2011033566 A1 JPWO2011033566 A1 JP WO2011033566A1 JP 2010533360 A JP2010533360 A JP 2010533360A JP 2010533360 A JP2010533360 A JP 2010533360A JP WO2011033566 A1 JPWO2011033566 A1 JP WO2011033566A1
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- terminal
- conductive
- semiconductor element
- ribbon
- electrode
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 161
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 238000000034 method Methods 0.000 claims description 30
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 26
- 229910052782 aluminium Inorganic materials 0.000 claims description 26
- 238000005304 joining Methods 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 210000001503 joint Anatomy 0.000 description 12
- CNQCVBJFEGMYDW-UHFFFAOYSA-N lawrencium atom Chemical compound [Lr] CNQCVBJFEGMYDW-UHFFFAOYSA-N 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
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Abstract
Description
(実施の形態1)
図1は実施の形態1における半導体装置の構成を説明する図であり、図1(a)は本発明の実施の形態1における半導体装置の例としてパワー半導体デバイスのMOS−FETの内部構造を示す平面図、図1(b)は図1(a)のX−X’線に沿った断面図である。
(実施の形態2)
図2は実施の形態2における半導体装置の製造方法を示す工程断面図である。
(実施の形態1)
図1は実施の形態1における半導体装置の構成を説明する図であり、図1(a)は本発明の実施の形態1における半導体装置の例としてパワー半導体デバイスのMOS−FETの内部構造を示す平面図、図1(b)は図1(a)のX−X’線に沿った断面図である。
(実施の形態2)
図2は実施の形態2における半導体装置の製造方法を示す工程断面図である。
2 リードフレーム
2a ダイパッド部
2b ソース端子
2c ゲート端子
3 半導体素子
3a ソース電極
3b ゲート電極
3c ドレイン電極
4 導電性ペースト
5 導電性ワイヤ
6 導電性リボン
7 ウェッジツール
8a 接合部
8b 接合部
9 樹脂
101 パワー半導体デバイス
102 リードフレーム
102a ダイパッド部
102b ソース端子
102c ゲート端子
103 半導体素子
103a ソース電極
103b ゲート電極
103c ドレイン電極
104 導電性ペースト
105 導電性ワイヤ
106 導電性リボン
108 接合部分
108a 未接合領域
Claims (8)
- 半導体素子の電極とリードフレームの端子とを導電性リボンを用いて電気的に接続する構成を備える半導体装置を製造する際の前記導電性リボンの接合方法が、
前記電極から前記端子にわたって前記導電性リボンを配置する工程と、
前記電極と前記導電性リボンとの接合部である第1の接合部にウェッジツールを圧接して超音波振動を印加することにより前記電極と前記導電性リボンとを一度の圧接でウェッジボンドする工程と、
前記端子と前記導電性リボンとの接合部である第2の接合部にウェッジツールを圧接して超音波振動を印加することにより前記端子と前記導電性リボンとを一度の圧接でウェッジボンドする工程と
を有し、前記ウェッジツールの先端の形状が、前記第2の接合部の形状と略同一であることを特徴とする半導体装置の製造方法。 - 前記導電性リボンが厚み0.1mmのアルミリボンであり、前記第1の接合部および前記第2の接合部のサイズが1.5mm×0.8〜0.9mmであることを特徴とする請求項1記載の半導体装置の製造方法。
- 半導体素子と、
前記半導体素子に設けられる1または複数の第1の電極と、
前記半導体素子に設けられる1または複数の第2の電極と、
前記半導体素子を搭載するダイパッドと、
前記半導体素子と電気的に接続される第1の端子を備える1または複数の第1のリードと、
前記半導体素子と電気的に接続される第2の端子を備える1または複数の第2のリードと、
前記第1の電極と前記第1の端子とを電気的に接続する導電性リボンと、
前記第2の電極と前記第2の端子とを電気的に接続する導電材と、
前記第1の電極と前記導電性リボンとが接合部される第1の接合部と、
前記第1の端子と前記導電性リボンとが接合され、面積が前記第1の接合部の面積と略同一である第2の接合部と、
前記半導体素子,前記導電性リボン,前記導電材,前記第1の端子及び前記第2の端子を封止する封止樹脂と
を有することを特徴とする半導体装置。 - 前記導電性リボンが厚み0.1mmのアルミリボンであり、前記第1の接合部および前記第2の接合部のサイズが1.5mm×0.8〜0.9mmであることを特徴とする請求項3記載の半導体装置。
- 前記第1の接合部における前記導電性リボンの接続方向の長さである幅が前記第1の電極の幅に対して33%以上であることを特徴とする請求項3記載の半導体装置。
- 前記第1の端子における前記導電性リボンの長さ方向の長さである幅が、前記第2の端子の前記導電性リボンの長さ方向の長さである幅に対して、0.1〜0.5mm程度広く形成されることを特徴とする請求項3記載の半導体装置。
- 前記第1の接合部における前記導電性リボンの長さ方向の長さである幅が、前記第1の端子における前記導電性リボンの長さ方向の長さである幅に対して75%以上であることを特徴とする2請求項1記載の半導体装置。
- パワー半導体素子と、
前記パワー半導体素子の表面に設けられるソース電極と、
前記パワー半導体素子の表面に設けられるゲート電極と、
前記パワー半導体素子の裏面に設けられるドレイン電極と、
前記パワー半導体素子を搭載して前記ドレイン電極と電気的に接続するダイパッドと、
リード長方向の幅が1.0mmであるソース端子を備えるソースリードと、
リード長方向の幅が0.5mmであるゲート端子を備えるゲートリードと、
前記ダイパッドと電気的に接続されるドレインリードと、
前記ソース電極と前記ソース端子とを電気的に接続する厚さ0.1mmのアルミリボンと、
前記ゲート電極と前記ゲート端子とを電気的に接続する導電性ワイヤと、
前記ソース電極と前記アルミリボンとが接合されるサイズが1.5mm×0.8〜0.9mmの第1の接合部と、
前記ソース端子と前記アルミリボンとが接合され、面積が前記第1の接合部の面積と略同一である第2の接合部と、
前記パワー半導体素子,前記アルミリボン,前記導電性ワイヤ,前記ソース端子及び前記ゲート端子を封止する封止樹脂と
を有することを特徴とする半導体装置。
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