Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Involving measuring – analyzing – or testing
Patent
1991-03-08
1993-06-29
Niebling, John
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Involving measuring, analyzing, or testing
2041531, 427 10, G01N 27416, C25D 2114
Patent
active
052231186
ABSTRACT:
A direct method of analyzing brighteners and levelers used in metal electroplating baths. The method is based on the differential adsorption of these additives on a working electrode during a sequence of steps prior to and during metal plating. The sensitivity of the method allows for the determination of both brightener and leveler in the same sample without cyclic processing.
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Tench et al., Pulse Voltommetric Stripping Analysis of Acid Copper Plating Baths, J. Electrochem, Soc., Apr. 1985, pp. 831-834.
Bernards Roger
Fisher Gordon
Houle Patrick
Sonnenberg Wade
Goldberg Robert L.
Leader William T.
Niebling John
Shipley Company Inc.
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