Precision registration system for leads

Details Precision registration system for leads Precision registration system for leads

1975-03-27

1976-07-13

Tupman, W.

Metal working

Method of mechanical manufacture

Electrical device making

29576S, 228180A, 357 70, B01J 1700

Patent

active

039685632

ABSTRACT:
Sets of finger-like leads for attachment to semiconductive devices which have a plurality of metallic electrical contacts are etched in a copper foil mounted on a temporary carrier strip simultaneously with indexing holes. The indexing holes are then used to index or register the set of leads when it is bonded to the semiconductive device. If desired, the temporary carrier strip can be removed and the semiconductive device and individual sets of leads are encapsulated in or on permanent carriers.

REFERENCES:
patent: 3440027 (1969-04-01), Hugle
patent: 3689991 (1972-09-01), Aird

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