| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrolytic alloy plating solution using no cyanide, which is applicable for hard gold plating and has good stability, and to provide an electrolytic alloy plating method using the same. SOLUTION: This electrolytic gold alloy plating solution contains a gold ion, at least one metal ion other than gold including nickel or cobalt, a sulfite other than gold sulfite, and a thiosulfate and/or a thiocyanate. The bath composition does not contain a cyanide. COPYRIGHT: (C)2010,JPO&INPIT
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