发明名称 BUMP STRUCTURE FOR MOUNTING ELEMENT CHIP AND METHOD FOR FORMING THE SAME
摘要 <P>PROBLEM TO BE SOLVED: To provide a bump structure capable of securing highly reliable connection at the time of connecting a semiconductor chip to a wiring board by using a peel transfer method. <P>SOLUTION: In this connection structure, a semiconductor chip (11) and a wiring substrate (21) are arranged so as to be faced to each other to connect a bump formed on a semiconductor chip (11) to a bump formed on the wiring board (21). The bump (14) formed on the semiconductor chip (11) is formed as a cross-sectional projecting bump by field-free plating, a bump (25) formed on the wiring board (21) is formed as a cross-sectional recessed bump by field-free plating, and the semiconductor chip (11) is connected to the wiring board (21) so that the projecting part of the bump (14) can be fit into the recessed part of the bump (25). <P>COPYRIGHT: (C)2004,JPO
申请公布号 JP2004158701(A) 申请公布日期 2004.06.03
申请号 JP20020324047 申请日期 2002.11.07
申请人 SEIKO EPSON CORP 发明人 KAMAKURA TOMOYUKI
分类号 H01L21/60 主分类号 H01L21/60
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