PURPOSE: To rapidly and easily plate a palladium alloy at the time of electroplating a Pd-contg. metallic material by the use of a specified electroplating bath by incorporating an alkylhydroxylamine with the number of carbons specified into the bath.
CONSTITUTION: An electroplating bath having 10-3 mho-cm conductivity and pH 5 is used, when a metallic material contg. at least one kind among silver, copper, Ni, Co, gold, Cr, Mn, Ru, Rh, platinum and Ir in addition to Pd is electroplated. At this time, the electroplating bath contains a Pd complex ion, the complexing agent contains 50C alkylhydroxylamines, and tris(hydroxyethyl) aminomethane is preferably used. Consequently, electroplating is performed as effectively as gold and less expensively, faster and more easily than gold.
BUAAJINIA TSUUHEI ETSUKAATO
KIYASARIIN UOROUODEIUKU
