Electrical inter-connection method

Details Electrical inter-connection method Electrical inter-connection method

1980-02-21

1982-04-06

Shaw, C. C.

Electric heating

Metal heating

By arc

219 5622, 228123, 228173E, B23K 1122, B23K 3100

Patent

active

043237592

ABSTRACT:
To permit ball-bonding of wires of aluminium or aluminium alloy to small electrical circuits or components, a spark discharge is created between the end of the wire and an electrode in a shielding atmosphere with a peak current density in the wire section which is from 40 to 450 times that used for ball-bonding gold wire. In this way oxidation of the ball is prevented.

REFERENCES:
patent: 2679570 (1954-05-01), Cisne
patent: 2759088 (1956-08-01), Lincoln
D. Baker et al., "An Improved Form of Thermocompression Bond", British Journal of Applied Physics, vol. 16, 1965, pp. 865-868.

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