Device for controlling pulsed electrolysis mode in contact pad fabrication

Abstract

An electronic device for controlling electrolysis under pulsed voltage supply to an electrolytic cell has been developed. By varying the amplitude of voltage and current pulses, their duration, and duty cycle, it enables regulation of both the deposition rate and quality of individual metals, as well as the ratio of metallic components in the electrodeposited mixture, taking into account their electrode potentials. Studies were conducted on the deposition of nickel and eutectic alloys in the In—Sn and In—Bi systems.