| 摘要 |
PROBLEM TO BE SOLVED: To provide a gold plating treatment technique, when the object to be plated having a metallic surface of copper, nickel is subjected to gold plating treatment, by which the elution of these metals can be prevented, and smooth, uniform gold plating can be attained. SOLUTION: A gold plating solution with one or more kinds of mercapto compounds selected from the group consisting of mercaptoacetic acid, mercaptobenzoic acid, thiomalic acid, 2-mercaptobenzothiazole, ammonium thioglycolate, 2-thiouracil and mercaptobenzoimidazole added as metal elution preventing agents in 1 to 1,000 mg/L is used, or those mercapto compounds are adsorbed on the surface in advance, and, after that, gold plating treatment is applied thereto. COPYRIGHT: (C)2003,JPO
|
