ELECTROLYTIC PROCESSING DEVICE

摘要

PROBLEM TO BE SOLVED: To stably process an object to be processed to a constant depth of a groove even if a concentration of an electrolyte is varied at an electrolytic processing device for forming a desired groove on a surface to be processed of an object to be processed comprising a material subjected to electrolysis. SOLUTION: A size of a potential VA at a downstream end of a micro resistance R1 and a reference potential VS is compared by a comparator 202. A resistance value between drain-source of an FET 203 depending on the size and the potential VA is controlled such that it becomes a reference potential VS. Thereby, a current value of a pulse current is made stable.