Plating bath and method of alloy including Sn-Cu and Articles coated by plating of alloy including Sn-Cu

摘要

For by tin anode (陽極) copper by silver alloy plating bath-soluble metal salt and a specific tin characterized in that it contains a sulfur-containing compound-copper alloy plating bath, tin-copper-bismuth alloy plating bath, or tin-copper this substitution is difficult to precipitate, a low current density dependence of the plating film composition, has good bath stability and can provide a plating bath containing a turbid hard tin and copper occur.