发明名称 SEMICONDUCTOR DEVICE AND ITS MANUFACTURING METHOD
摘要 <p><P>PROBLEM TO BE SOLVED: To provide a semiconductor device wherein no breakage is in a stress relaxation layer and a bump electrode can be formed into multi-terminals, and to provide a method for manufacturing the same that produces no breakage in the stress relaxation layer. <P>SOLUTION: In a metal mask 11 used for forming a stress relaxation layer 5, a relief 11a swelling outside an intersection O between extension lines x-x and y-y of adjoining two sides is provided at four corners of a through hole 12. When such the metal mask 11 is used, at least a part in the relief 12a is filled with a stress relaxation layer material during patterning of the stress relaxation layer 5, so that a projecting part 14 projecting outside from an intersection O between extension lines X-X and Y-Y of adjoining two sides is formed at four corners of the stress relaxation layer 5. Thus, the reduction of a bump electrode 9 due to defect in shape of the stress relaxation layer 5 can be prevented, and the bump electrode can be formed as multi-terminals as a result. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p>
申请公布号 JP2005150357(A) 申请公布日期 2005.06.09
申请号 JP20030385150 申请日期 2003.11.14
申请人 HITACHI MAXELL LTD 发明人 YAMASHITA YUJI;KISHIMOTO SEIJI;KANAI TOMONORI
分类号 H01L23/12;(IPC1-7):H01L23/12 主分类号 H01L23/12
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