Method and apparatus for forming and positioning a preform on a

Details Method and apparatus for forming and positioning a preform on a Method and apparatus for forming and positioning a preform on a

1991-07-01

1993-12-28

Rosenbaum, Mark

Metal working

Method of mechanical manufacture

Assembling or joining

29759, 29785, 264153, 156261, 156520, B21D 3900

Patent

active

052728005

ABSTRACT:
A method and apparatus for forming and attaching a preform to a metallic workpiece, particularly an epoxy preform for use in electronic packages. The epoxy preform is stamped from a strip and maintained in an upper die assembly. The metallic workpiece is indexed underneath the upper die assembly whereupon the epoxy preform is deposited onto the metallic workpiece and the metallic workpiece removed from underneath the upper die assembly.

REFERENCES:
patent: 4214944 (1980-07-01), Lemke
patent: 4897508 (1990-01-01), Mahulikar et al.
patent: 4939316 (1990-07-01), Mahulikar et al.

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