Gold plating bath containing tartrate and carbonate salts

Details Gold plating bath containing tartrate and carbonate salts Gold plating bath containing tartrate and carbonate salts

1983-06-27

1984-08-14

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

204 43G, 204DIG9, C25D 348, C25D 362

Patent

active

044655649

ABSTRACT:
A bath for electrodepositing gold utilizes, as the essential ingredients of its electrolyte, salts providing the tartrate radical and the carbonate radical. The bath will have a pH value ranging from approximately neutral to highly alkaline, and adjustments to lower the pH will most advantageously be made utilizing tartaric acid. The bath operates with relatively low gold concentrations, and is capable of producing highly pure deposits and highly desirable alloy deposits; it is especially well suited for semi-conductor industry applications.

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V. A. Lamb, Plating, pp. 909-913, Aug. 1969.

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