| 摘要 |
PROBLEM TO BE SOLVED: To provide a tin-zinc alloy plating bath which has a plating having a dense and smooth plating surface and has high safety. SOLUTION: The tin-zinc alloy plating bath contains three components; (a) Sn<SP>2+</SP>, (b) Zn<SP>2+</SP>, and (c) polyoxyethylene alkyl ether. The tin-zinc alloy plating bath which forms a plating film having the dense and smooth plating surface, has the high safety, and does not give rise to environmental problems and pollution problems is constituted. The polyoxyethylene alkyl ether (c) is a nonionic surfactant, has a good adhesion property and contributes to the formation of the dense and smooth plating film. COPYRIGHT: (C)2005,JPO&NCIPI
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