发明名称 Structure and method of direct chip attach
摘要 A semiconductor package (101) has a die (1), a leadframe (4), a bond pad (6), an encapsulation (3) and a wire bond ball (2). The wire bond ball is formed on the bond pad by bonding one end of a bond wire (7), and remainder of the bond wire is removed. Locations (23) for attaching the wire bond ball are recorded with reference to fiducials (5) on the lead frame. The encapsulation covers the die, deposits and die attach flag (24) of the lead frame. The wire bond ball is exposed where the encapsulation is removed. The locations for making openings (17) for exposing the wire bond ball is determined by recorded coordinates when the wire bond ball is formed. Exposed wire bond ball is plated, forming a lead to electrically connect to the die.
申请公布号 US2004048413(A1) 申请公布日期 2004.03.11
申请号 US20020237123 申请日期 2002.09.09
申请人 SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC. 发明人 QUAH GUAN KENG
分类号 H01L21/56;H01L23/31;H01L23/485;H01L23/495;(IPC1-7):H01L21/44 主分类号 H01L21/56
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