Patent ID: 6773570
Filing Date: 2004-08-10
Classification: C25D,H01L,Y10S

Abstract:
An apparatus for performing both electroplating of a metal layer and planarization of said layer on a substrate, the planarization being performed by electroetching and chemical-mechanical polishing (CMP), the apparatus comprising:a table for supporting a polishing pad and having a plurality of holes forming channels for dispensing an electroplating solution onto the pad; the polishing pad, having a top surface and having a plurality of holes therethrough corresponding to the holes in the table; a plurality of electroplating anodes disposed in said channels and in contact with the electroplating solution; a carrier for holding the substrate substantially parallel to the top surface of the pad and for applying variable mechanical force on the substrate against the pad, the carrier rotating with respect to the table and including a plating cathode; and a slurry dispenser for dispensing a polishing slurry on the pad during a CMP process, wherein the carrier applies a first amount of force during an electroplating process and a second amount of force during an electroetching process.