Process of making lids for microelectronic circuit gases

Details Process of making lids for microelectronic circuit gases Process of making lids for microelectronic circuit gases

1975-05-21

1976-05-18

Di Palma, Victor A.

Metal working

Method of mechanical manufacture

Obtaining plural product pieces from unitary workpiece

29DIG12, 29DIG16, 29DIG37, 29DIG40, 156 8, B23P 1700

Patent

active

039568148

ABSTRACT:
A process for forming stepped lids for microelectronic circuit cases. A plurality of interconnected lids is etched in a metal sheet with the lids oversize. Individual lids are stamped from the sheet to the desired size, providing substantially square corners at the edge of the lid and a substantially flat rim for engagement with the case.

REFERENCES:
patent: 1093698 (1914-04-01), Heaton
patent: 2743506 (1956-05-01), Solow
patent: 3571899 (1971-03-01), Sobieski
patent: 3691654 (1972-09-01), Siegel
patent: 3909908 (1975-10-01), Brefka

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