发明名称 Method of making sealed housings containing delicate structures
摘要 A method of making an integrated circuit package comprising an integrated "chip" within an hermetically sealed housing with external electrical leads extending from the chip terminals, and the product formed by such method. The method involves injection molding of a thermoplastic rim on and in sealed relation to a lead frame prior to locating the chip in the central region of the frame and installing fine wire connections from the chip terminals to the lead fingers. The housing is completed by a solid bottom wall insert sealed in the lower mouth of the rim and a solid top wall cap sealed to the upper mouth of the rim by procedures which involve no flowing of plastic material over or into contact with either (i) the upper surfaces of the lead fingers prior to making the wire connections to such fingers, or (ii) the chip and the wire connectors after they have been associated with the lead frame.
申请公布号 US4701999(A) 申请公布日期 1987.10.27
申请号 US19850810032 申请日期 1985.12.17
申请人 PNC, INC. 发明人 PALMER, CLARENCE K.
分类号 H01L21/50;H01L21/56;H01L23/057;(IPC1-7):H01L23/02 主分类号 H01L21/50
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