Patent ID: 7294243

Claim:
A reactor for electrochemical deposition processing of a microelectronic workpiece, comprising: a vessel configured to hold a processing solution; an electrode disposed relative to the vessel to provide an electrical potential in the vessel; a head assembly moveable relative to the vessel between a load/unload position and a processing position; and a contact assembly carried by the head assembly, wherein the contact assembly comprises a support member having an inner wall defining an opening configured to receive the workpiece; a plurality of contacts including a conductor and a cover, the conductor comprising a proximal section projecting inwardly into the opening relative to the support member, and a distal section extending from the proximal section, and the cover comprising a dielectric element covering at least the proximal section of the conductor; and wherein the support member comprises a ring having a conductive element and a plurality of turrets; the covers of the contacts comprise dielectric sheaths, and wherein the sheaths have a bore and project from the turrets; and the conductors of the contacts comprise rods having a first section received in the bore of a sheath and a second section projecting inwardly from the cover.