发明名称 LEAD FRAME AND RESIN SEALED DEVICE
摘要 <p>PROBLEM TO BE SOLVED: To obtain a lead frame and a resin sealed device in which residual resin is removed without causing any cracking in the resin remaining on a runner by the impact of a punch. SOLUTION: A lead frame 12 is provided with cut holes 19 and an upper die 1 is provided with recesses 3 facing the cut holes 19, at the time of resin sealing, so that no protrusion, projecting from the cut hole 19 of the lead frame 12 and adhering to the lead frame 12 after resin sealing, is formed on the resin mass of a runner 16.</p>
申请公布号 JP2001217370(A) 申请公布日期 2001.08.10
申请号 JP20000028384 申请日期 2000.02.04
申请人 NEC YAMAGATA LTD 发明人 TAKAHASHI MATSUKICHI
分类号 B29C45/38;B29C45/02;B29C45/14;H01L21/56;H01L23/50;(IPC1-7):H01L23/50 主分类号 B29C45/38
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