Thermocompression welding device

Details Thermocompression welding device Thermocompression welding device

1976-06-25

1977-10-11

Watson, Robert C.

Metal fusion bonding

With means to juxtapose and bond plural workpieces

Wire lead bonder

228180A, H01L 21603

Patent

active

040530965

ABSTRACT:
A thermocompression welding device including a welding head having two tools for automatically and simultaneously effecting welds between a connecting wire and a pair of contact areas, one on a semiconductor chip and one on a housing for the chip. The weld head is transversed between consecutive weld positions using an X-Y table. The apparatus provides automatic adjustment of connecting wire length, and matched automatic adjustment of weld head separation, corresponding to different contact area spacings and automatic orientation of the welding head to correspond to different orientations of the pairs of contact areas. Preprogrammed lengths of wire are fed to the welding head from a continuous coil and bent into position for simultaneous engagement by both welding tools, the wire being severed adjacent one of the welds immediately following each welding operation.

REFERENCES:
patent: 3376635 (1968-04-01), Moesker
patent: 3941298 (1976-03-01), Nicklaus

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