Gold-plated tungsten or molybdenum electrodes - produced by electrolessly plating over nickel and silver layers

摘要

W or Mo electrodes, used to measure electrical values of semi-conductor devices, are coated with a layer of Ni electrolessly followed by an electrolytically plated As layer and finally with an electrolessly plated Au layer. No inter. heat treatment as in the prior art to ensure good adhesion of the Au required.