Patent ID: 6322674
Filing Date: 2001-11-27
Classification: C25D,Y10S

Abstract:
An apparatus for use in electroplating a workpiece comprising:an electroplating chamber;a rotor assembly disposed for rotation with respect to the stator assembly, the rotor assembly including a workpiece holder adapted to support a workpiece during electroplating thereof;a current thief assembly connected for co-rotation with the rotor assembly, the current thief assembly including one or more conductive segments that are positioned to be proximate the workpiece during electroplating;a current control circuit connected for co-rotation with the rotor and current thief assembly, the current control circuit being connected to control thieving current flow through the one or more conductive segments of the current thief assembly, the current control circuit including an internal power source mounted therewith for providing power to operate the current control circuit.