Metal fusion bonding – Process – Metal to nonmetal with separate metallic filler
Patent
1984-06-29
1987-01-06
Ramsey, Kenneth J.
Metal fusion bonding
Process
Metal to nonmetal with separate metallic filler
2281802, 228238, B23K 120
Patent
active
046340416
ABSTRACT:
A process for bonding an I/O pin to a substrate wherein a mass of brazing material of an alloy that includes Ag and a metal selected from the group consisting of In and Sn and mixtures thereof, that exhibit a mushy zone over a predetermined range, is placed between a pin pad and the bonding surface of an I/O pin, where the diameter of the pin pad exceeds the diameter of the bonding surface of the pin by at least 0.01 inches, heating the resultant assembly to a brazing temperature within the predetermined range to form a mushy state of the brazing material while applying pressure to the pin, and cooling the assembly.
REFERENCES:
patent: 2606362 (1917-08-01), Martin
patent: 3680198 (1972-08-01), Wood
patent: 4182628 (1980-01-01), D'Silva
patent: 4418857 (1983-12-01), Ainslie et al.
patent: 4488673 (1984-12-01), Hopper, Jr.
patent: 4518112 (1985-05-01), Miller et al.
Prasad Chandrika
Szewczyk Andrew F.
International Business Machines - Corporation
Ramsey Kenneth J.
Stoffel Wolmar J.
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