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发明授权
US5635253A Method of replenishing electroless gold plating baths 失效
补充无电镀金液的方法

Method of replenishing electroless gold plating baths
摘要：
A replenishing solution for a cyanide-based electroless gold plating bath. The solution includes a gold(III) halide such as gold chloride, gold bromide, tetrachloroaurate (and its sodium, potassium, and ammonium salts), and tetrabromoaurate (and its sodium, potassium, and ammonium salts). The replenishing solution also may include an alkali (such as potassium hydroxide, sodium hydroxide, and ammonium hydroxide) to maintain the pH of the solution between 8 and 14. Also provided is a method of replenishing a cyanide-based electroless gold plating bath with the solution of the present invention.
摘要（中）：

一种基于氰化物的无电镀金液的补充溶液。 该溶液包括金（III）卤化物如氯化金，溴化金，四氯牛磺酸盐（及其钠盐，钾盐和铵盐）和四溴乙酸盐（及其钠盐，钾盐和铵盐）。 补充溶液还可以包括碱（例如氢氧化钾，氢氧化钠和氢氧化铵），以保持溶液的pH在8和14之间。还提供了一种补充基于氰化物的无电镀金浴的方法， 本发明的溶液。

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