PROCESS FOR BATH ARRANGEMENT FOR INCREASING THE EFFECTIVENESS OF ELECTROPLATING

摘要

The anode in the electro-plating bath is surrounded by an auxiliary electrode in the form of a net or grid, which is maintained at a negative potential with respect to the anode. - The auxiliary electrode is not part of the process, the current through it being significantly smaller than the anode-cathode current. The potential of the auxiliary electrode increases the electric space charge in the vicinity of the anode, thus aiding the departure of ions and making it more uniform.