ELECTROLESS TIN PLATING SOLUTION

摘要

PROBLEM TO BE SOLVED: To provide a method for enhancing the productivity of products by shortening the heat treatment time for preventing generation of a whisker of a tin plating film.;SOLUTION: Electroless tin plating solution contains soluble tin salt, complexing agent and acid, and further contains water-soluble aliphatic alcohol having three or more hydroxyl groups in one molecule (wherein, ether linkage may be contained in the aliphatic group). In a method for manufacturing a plated object having a tin plating film, an object to be plated having copper at least on its surface is immersed in the electroless tin plating solution, and then, subjected to the heat treatment for 40-75 minutes at the condition of a temperature of 110-130°C, and the thickness of a pure tin layer in the obtained tin plating film is controlled to 0.100-0.250 μm.;COPYRIGHT: (C)2011,JPO&INPIT