Colloidal dispersions for activating non-conductors prior to ele

Details Colloidal dispersions for activating non-conductors prior to ele Colloidal dispersions for activating non-conductors prior to ele

1980-05-27

1982-04-06

Hayes, Lorenzo B.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

106 111, 25213R, 427305, 427306, C23C 302

Patent

active

043235948

ABSTRACT:
Metallic surfaces are imparted to non-conductive or dielectric substrates by an electroless (chemical) coating process comprised of coating the surface of the substrate with colloids having a nucleus of catalytic non-precious metals wherein the metals are either part of an alloy or in the elemental state or a compound and wherein the colloidal compositions further contain copper (I) which renders the colloids a greater catalytic activity when used in the plating process as well as when used in photochemical activity.

REFERENCES:
patent: 2072809 (1937-03-01), Bley
patent: 3082103 (1963-03-01), Wainer
patent: 3657003 (1972-04-01), Kenney
patent: 3958048 (1976-05-01), Donovan et al.
patent: 4087586 (1978-05-01), Feldstein
patent: 4132832 (1979-01-01), Feldstein
patent: 4151311 (1979-04-01), Feldstein

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