APPARATUS AND METHOD FOR ELECTROCHEMICALLY ISOLATING A SECTION OF A SUBSTRATE

This invention relates to an adjustable isolation apparatus for an electrochemical treatment apparatus in order to isolate a section of an elongated substrate in a direction of isolation of the isolating apparatus such that a significant electrochemical treatment of the isolated section by an electrochemically active liquid is preventable, wherein the substrate has a direction of isolation along which the section is isolated from another region of the substrate, characterized in that the isolation apparatus comprises a plurality of segments which are arranged around a segment center and, in operation, surround the substrate at least approximately in transverse direction to the direction of isolation, wherein the segments are movable towards or away from the substrate by adjustment of the isolation apparatus, wherein by adjustment of the segments, a cross-section of gaps, that bypass the segments in direction of isolation between the segments themselves and/or between one or more segments and the substrate, is reducible such that the isolated section of the substrate is not significantly treated; an electrochemical treatment apparatus comprising the adjustable isolation apparatus and a method to adjust the adjustable isolation apparatus for an electrochemical treatment apparatus.