A METHOD OF HIGH SPEED ELECTROPLATING PALLADIUM AND PALLADIUM ELECTROPLATING SOLUTION THEREFOR

摘要

A method of high speed electroplating and a palladium electroplating solution to produce lustrous crack-free palladium deposits, the solution comprising palladium metal at a concentration above about 10 g/l, a pH between about 7 and 9, and having a phosphate or carbonate anion concentration sufficient to create acceptable deposits at a current density delta of about 200 ASF and above at jet agitation speeds above about 125 inches per second and a current density delta of about 50 ASF at a cathode agitation speed above 3 inches per second, said solution being free of quaternized pyridinium brightening agents.