发明名称 Semiconductor sealing mold
摘要 A semiconductor sealing mold for sealing a semiconductor element within a thermosetting resin is provided with resin inflow openings formed in oppositely and substantially symmetrically opposed relation to the active surface and back surface of a lead frame connected semiconductor element. As a result, the application of the molding process and method of encapsulation of the semiconductor element can be accomplished under conditions of uniformly applied pressure to opposite surfaces of the semiconductor element and extending outwardly in all radial directions from the center of the semiconductor element. Furthermore, since the bonding wires and lead frame leads are substantially aligned in the same radial directions from the center of the semiconductor element, damage does not occur to these wires or leads during the molding process.
申请公布号 US5302850(A) 申请公布日期 1994.04.12
申请号 US19930114413 申请日期 1993.08.30
申请人 SEIKO EPSON CORPORATION 发明人 HARA, AKITOSHI
分类号 B29C45/14;H01L21/56;(IPC1-7):H01L23/28 主分类号 B29C45/14
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