发明名称 |
BONDING WIRE AND INTEGRATED CIRCUIT DEVICE USING THE SAME |
摘要 |
A bonding wire comprising a core and a coating layer formed on the core, wherein the coating layer is formed from a metal having a higher melting point than the core, and further has at least one of the following characteristics; 1. the wet contact angle with the coating layer when the core is melted is not smaller than 20 degrees; 2. when the bonding wire is hung down with its end touching a horizontal surface, and is cut at a point 15 cm above the end and thus let drop onto the horizontal surface, the curvature radius of the formed arc is 35 mm or larger; 3. the 0.2% yield strength is not smaller than 0.115 mN/µm 2 but not greater than 0.165 mN/µm 2 ; or 4. the Vickers hardness of the coating layer is 300 or lower. |
申请公布号 |
EP1677345(A1) |
申请公布日期 |
2006.07.05 |
申请号 |
EP20040773800 |
申请日期 |
2004.10.13 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
KAIMORI, S.;NONAKA, TSUYOSHI;IOKA, MASANORI |
分类号 |
B23K20/00;H01L21/60 |
主分类号 |
B23K20/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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