Acidic bath for electroless deposition of gold films

Details Acidic bath for electroless deposition of gold films Acidic bath for electroless deposition of gold films

1987-12-08

1989-05-16

Willis, Prince E.

Compositions: coating or plastic

Coating or plastic compositions

Cellulose liberation waste liquor, solid, or reaction...

106126, 427304, 427437, 4274431, 204 384, C23C 1844

Patent

active

048306681

ABSTRACT:
In an aqueous bath for electroless deposition of gold films, of the type containing a source of gold in oxidized form, a reducing agent, a stabilizer of 2-mercaptobenzothiazole or a derivative thereof, the improvement comprising said source of gold being a gold complex which is the reaction product of an alkali metal cyanoaurate (III) and a complexing agent selected from the group consisting of ethylenediaminetetramethylene-phosphonic acid and 1-hydroxythane-1,1-diphosphonic acid in aqueous solution; said aqueous bath having a pH value between 0.2 and 1.8.

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patent: 3878068 (1975-04-01), Bick et al.
patent: 4169171 (1976-10-01), Narcus
patent: 4337091 (1982-06-01), El-Shazly et al.
patent: 4352690 (1982-10-01), Dettke et al.
patent: 4374876 (1983-02-01), El-Shazly et al.

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