发明授权
US4021316A Bath for the electrodeposition of bright tin-cobalt alloy 失效
用于电沉积明亮的锡钴合金的浴

Bath for the electrodeposition of bright tin-cobalt alloy
摘要:
Bright tin-cobalt alloy produced by electrodeposition from an aqueous pyrophosphate electroplating bath that contains a stannous salt, a cobalt salt and a brightener additive which is a combination of at least one water-soluble peptide and at least one of the group of ammonia, ammonium salts and amine compounds.
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