ELECTROLYTIC TREATMENT METHOD AND ELECTROLYTIC TREATMENT APPARATUS

摘要

PROBLEM TO BE SOLVED: To effectively and properly perform prescribed treatment to a workpiece, using object ions in a treatment liquid.SOLUTION: A direct electrode 20 and a counter electrode 22 are arranged so that a plating liquid M is sandwiched. An indirect electrode 21 forming an electric field in the plating liquid M is inextricably arranged to the direct electrode 20. By continuously applying a DC voltage between the indirect electrode 21 and the counter electrode 22, copper ions C in the plating liquid M are transferred to the side of the counter electrode 22. By applying a pulse voltage between the direct electrode 20 and the counter electrode 22, the copper ions C transferred to the side of the counter electrode 22 are reduced.