Method of forming a conductive metal pattern

Details Method of forming a conductive metal pattern Method of forming a conductive metal pattern

1980-12-24

1982-06-08

Lusignan, Michael R.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427123, 427125, 427216, 427220, 427229, 427256, 427282, 427287, 4273766, 4273767, 4273831, 4273835, H05K 300

Patent

active

043339662

ABSTRACT:
A novel silver powder composition characterized by a very low fusion, or film-forming temperature, probably assignable to the relatively small amount of oxides or other undesirable occlusions within coatings formed of the powder. The invention also relates to a new process for forming such a powder; the process is believed to involve the formation of a fatty-acid silver reaction product of the surface of the silver powder before it is subjected to fusion into a metallic coating. During fusion the decomposing reactant seems to act as a flux aiding the formation of a metal film of superior appearance and strength.

REFERENCES:
patent: 3345199 (1967-10-01), Fitch
patent: 3383247 (1968-05-01), Adlhart et al.
patent: 3528845 (1970-09-01), Donley
patent: 3694254 (1972-09-01), Blumenthal
patent: 3814696 (1974-06-01), Verdone et al.
patent: 3843349 (1974-10-01), Ehrreich et al.

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