Gold and gold alloy deposition

Chemistry: electrical and wave energy – Processes and products

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204 46G, C25D 348, C25D 362

Patent

active

040627365

ABSTRACT:
Disclosed is a bath and process for obtaining deposits of gold or gold alloys of improved uniformity of deposit thickness on an irregularly shaped conductive surface. The aqueous plating bath contains gold as the aurocyanide complex, a mild reducing agent, a complexing agent, arsenic as a water-soluble arsenic compound, and a substituted polyamine.

REFERENCES:
patent: 3642589 (1972-02-01), Nobel et al.
patent: 3783111 (1974-01-01), Bick et al.
patent: 3878066 (1975-04-01), Dettke et al.
patent: 3878068 (1975-04-01), Bick et al.

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