发明名称 GOLD ALLOY WIRE FOR BONDING WIRE HAVING HIGH INITIAL JUNCTION PROPERTY, HIGH JUNCTION RELIABILITY, HIGH CIRCULARITY OF COMPRESSION BONDING BALL, HIGH LINEARITY, HIGH RESIN FLOW RESISTANCE AND LOW SPECIFIC RESISTANCE
摘要 <P>PROBLEM TO BE SOLVED: To provide a gold alloy wire for a bonding wire having high initial junction property, high junction reliability, the high circularity of a compression bonding ball, high linearity, high resin flow resistance and specific resistance. <P>SOLUTION: The gold alloy wire for the bonding wire contains one or two kinds of Pt and Pd of lower than 500-1,000 ppm in total, Ir of 1-100 ppm, Ca of more than 30-100 ppm, and Eu of more than 30-100 ppm, contains Be of 0.1-20 ppm as necessary, contains one or more kinds selected from La, Ba, Sr and Bi of 30-100 ppm in total as necessary, contains Ag of 1-10 ppm as necessary, and has the balance of component composition comprising Au and inevitable impurities. <P>COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2006351701(A) 申请公布日期 2006.12.28
申请号 JP20050173726 申请日期 2005.06.14
申请人 MITSUBISHI MATERIALS CORP 发明人 MAKI KAZUMASA;NAKADA YUJI
分类号 H01L21/60;C22C5/02 主分类号 H01L21/60
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