JP2006216929A - 半導体装置用ボンディングワイヤ - Google Patents
半導体装置用ボンディングワイヤ Download PDFInfo
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- JP2006216929A JP2006216929A JP2005193629A JP2005193629A JP2006216929A JP 2006216929 A JP2006216929 A JP 2006216929A JP 2005193629 A JP2005193629 A JP 2005193629A JP 2005193629 A JP2005193629 A JP 2005193629A JP 2006216929 A JP2006216929 A JP 2006216929A
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- wire
- copper
- skin layer
- bonding
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Abstract
【解決手段】 銅を主成分とする芯材と、該芯材の上に芯材と異なる組成の導電性金属の表皮層を有するボンディングワイヤであって、前記表皮層内にワイヤ径方向に銅の濃度勾配を有し、前記表皮層の表面の銅濃度が0.1mol%以上であることを特徴とする半導体装置用ボンディングワイヤである。
【選択図】 なし
Description
(1) 銅を主成分とする芯材と、該芯材の上に芯材と異なる組成の導電性金属の表皮層を有するボンディングワイヤであって、前記表皮層内にワイヤ径方向に銅の濃度勾配を有し、前記表皮層の表面の銅濃度が0.1mol%以上であることを特徴とする半導体装置用ボンディングワイヤ。
(2) 銅を主成分とする芯材と、該芯材の上に芯材と異なる組成の導電性金属の表皮層を有するボンディングワイヤであって、前記表皮層内にワイヤ径方向に銅の濃度勾配と金属間化合物を有し、前記表皮層の表面の銅濃度が0.1mol%以上であることを特徴とする半導体装置用ボンディングワイヤ。
(3) 前記表皮層の主成分が、金、パラジウム、白金、銀又はニッケルから選ばれる1種以上である(1)又は(2)に記載の半導体装置用ボンディングワイヤ。
(4) 前記表皮層の主成分が、金、パラジウム、白金又は銀から選ばれる1種以上であり、Ca、Sr、Be、Al又は希土類元素から選ばれる1種以上を総計で1〜300質量ppm含有する(1)又は(2)に記載の半導体装置用ボンディングワイヤ。
(5) 前記銅を主成分とする芯材が、銀、スズ又は亜鉛の1種以上を総計で0.02〜30質量%含有する(1)又は(2)に記載の半導体装置用ボンディングワイヤ。
(6) 前記表皮層を構成する銅以外の導電性金属の総計は、ワイヤ全体に占める含有量で0.02〜10mol%の範囲である(1)〜(5)のいずれかに記載の半導体装置用ボンディングワイヤ。
(7) 前記表皮層の結晶粒界に銅が濃化している(1)〜(5)のいずれかに記載の半導体装置用ボンディングワイヤ。
Claims (7)
- 銅を主成分とする芯材と、該芯材の上に芯材と異なる組成の導電性金属の表皮層を有するボンディングワイヤであって、前記表皮層内にワイヤ径方向に銅の濃度勾配を有し、前記表皮層の表面の銅濃度が0.1mol%以上であることを特徴とする半導体装置用ボンディングワイヤ。
- 銅を主成分とする芯材と、該芯材の上に芯材と異なる組成の導電性金属の表皮層を有するボンディングワイヤであって、前記表皮層内にワイヤ径方向に銅の濃度勾配と金属間化合物を有し、前記表皮層の表面の銅濃度が0.1mol%以上であることを特徴とする半導体装置用ボンディングワイヤ。
- 前記表皮層の主成分が、金、パラジウム、白金、銀又はニッケルから選ばれる1種以上である請求項1又は2に記載の半導体装置用ボンディングワイヤ。
- 前記表皮層の主成分が、金、パラジウム、白金又は銀から選ばれる1種以上であり、Ca、Sr、Be、Al又は希土類元素から選ばれる1種以上を総計で1〜300質量ppm含有する請求項1又は2に記載の半導体装置用ボンディングワイヤ。
- 前記銅を主成分とする芯材が、銀、スズ又は亜鉛の1種以上を総計で0.02〜30質量%含有する請求項1又は2に記載の半導体装置用ボンディングワイヤ。
- 前記表皮層を構成する銅以外の導電性金属の総計は、ワイヤ全体に占める含有量で0.02〜10mol%の範囲である請求項1〜5のいずれかに記載の半導体装置用ボンディングワイヤ。
- 前記表皮層の結晶粒界に銅が濃化している請求項1〜5のいずれかに記載の半導体装置用ボンディングワイヤ。
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JP2005193629A JP2006216929A (ja) | 2005-01-05 | 2005-07-01 | 半導体装置用ボンディングワイヤ |
KR1020107003399A KR101019811B1 (ko) | 2005-01-05 | 2006-01-05 | 반도체 장치용 본딩 와이어 |
PCT/JP2006/300312 WO2006073206A1 (ja) | 2005-01-05 | 2006-01-05 | 半導体装置用ボンディングワイヤ |
KR1020097013294A KR20090086448A (ko) | 2005-01-05 | 2006-01-05 | 반도체 장치용 본딩 와이어 |
KR1020077017936A KR101016158B1 (ko) | 2005-01-05 | 2006-01-05 | 반도체 장치용 본딩 와이어 |
US11/794,797 US7820913B2 (en) | 2005-01-05 | 2006-01-05 | Bonding wire for semiconductor device |
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