Fishing – trapping – and vermin destroying
Patent
1988-04-28
1989-10-17
Hearn, Brian E.
Fishing, trapping, and vermin destroying
29825, 29739, 156 69, 174 521, 206331, 264276, 437214, H01L 2502
Patent
active
048747220
ABSTRACT:
A method of producing a cavity package semiconductor device is disclosed. The method includes providing a bar pad having a plurality of bar pad straps, each strap extending outwardly from the outer edge of the bar pad and spaced about the edge of the bar pad; mounting integrated circuits having bond pads on the bar pad; molding a packing material onto a central portion of lead fingers and the bar straps to grip and surround each lead finger with package material, with a portion of each lead finger extending externally from the ring at both the exterior and interior thereof and to secure the bar pad straps therein; electrically coupling the bond pads to the portion of desired ones of the lead fingers extending toward the interior of the ring; and enclosing both ends of the ring to provide a cavity in the ring to suspend a bar pad with the integrated circuit thereon within the cavity with the bar pad straps.
REFERENCES:
patent: 4079511 (1978-03-01), Grabbe
patent: 4079511 (1978-03-01), Grabbe
patent: 4109818 (1978-08-01), Hascoe et al.
patent: 4303934 (1981-12-01), Stitt
patent: 4507907 (1985-04-01), Wolfson
Bednarz George A.
Roeding Gretchen W.
Smith Reginald W.
Test Howard R.
Barndt B. Peter
Comfort James T.
Hearn Brian E.
Pawlikowski Beverly A.
Sharp Melvin
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