Fishing – trapping – and vermin destroying
Patent
1985-12-17
1987-10-27
Grimley, Arthur T.
Fishing, trapping, and vermin destroying
174 52FP, 26427217, 264248, 264259, 264274, 357 70, H01L 2302
Patent
active
047019999
ABSTRACT:
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.
REFERENCES:
patent: 3714370 (1973-01-01), Nixen et al.
patent: 3838094 (1974-09-01), Sporck
patent: 4303934 (1981-12-01), Stitt
patent: 4305897 (1981-12-01), Hazama et al.
patent: 4535350 (1985-08-01), Goodrich et al.
Grimley Arthur T.
PNC, Inc.
Tone David A.
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