发明名称 Method for making an aluminum clad leadframe and a semiconductor device employing the same
摘要 A quad leadframe (22') for a CERQUAD is manufactured using conventional cladding and stamping technologies. A first metal layer (12) is provided with multiple cavities (14). A second metal layer (14) is clad to the first metal layer. A leadframe strip (22) can then be stamped from the clad metal. The leadframe has a leads (24) and bonding posts (28). The leads comprise two metal layers, and the bonding posts comprise only the second metal layer. The leadframe can then be used in the assembly of a semiconductor device (32). The portion of the leads external to the package body can be optionally etched to remove the second metal layer.
申请公布号 US5378657(A) 申请公布日期 1995.01.03
申请号 US19940205424 申请日期 1994.03.04
申请人 MOTOROLA, INC. 发明人 LIN, PAUL T.
分类号 H01L23/48;H01L21/48;H01L23/10;H01L23/495;H01L23/50;H05K1/02;H05K3/34;(IPC1-7):H01L21/60 主分类号 H01L23/48
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