Patent ID: 6939448

Claim:
A reactor for electrochemical deposition processing of microelectronic workpieces, comprising: a bowl configured to hold a plating solution; an anode assembly in the reactor at a location to be in fluid communication with the plating solution in the bowl; a head assembly moveable relative to the bowl between a first position to load/unload a workpiece and a second position to place at least a portion of the workpiece in the plating solution; and a contact assembly comprising a support member and a contact system, wherein the support member has an inner wall defining an opening configured to allow the workpiece to move through the support member along an access path and a plurality of passageways configured to direct gas bubbles and/or electroplating solution through the contact assembly, and the contact system is coupled to the support member, wherein the contact system has at least one curved conductive mounting section attached to the support member and a plurality of contact members integral with the conductive mounting section projecting inwardly into the opening relative to the support member and transversely with respect to the access path, and wherein each contact member has a contact site configured to electrically contact the workpiece inwardly relative to the passageways.