Patent ID: 6939455
Filing Date: 2005-09-06
Classification: C25D,H05K

Abstract:
1. Method for electrolytic treatment of electrically conductive structures ( 4 ) on surfaces of mutually isolated sheet and foil material pieces (LP), comprising the steps of: a) transporting the material pieces (LP) through a treatment unit and thereby bringing the material pieces in contact with treatment fluid ( b) during the transporting, guiding the material pieces (LP) past at least one electrode arrangement, which comprises respectively at least one cathodically polarised electrode ( c) providing the electrodes ( d) providing the material pieces comprising the electrically conductive structures; and e) arranging the at least one cathodically polarised electrode and the at least one anodically polarised electrode in the at least one electrode arrangement to match the size of electrically conductive structures on the surfaces of the material pieces, such that electric field lines emanating from the at least one cathodically polarised electrode and from the at least one anodically polarised electrode are effective to electrolytically treat a same one of the electrically conductive structures of one of the material pieces.