Patent ID: 6340327
Filing Date: 2002-01-22
Classification: B24B

Abstract:
An apparatus for polishing a workpiece comprising:a polishing pad; at least two polishing arms, each for holding a workpiece to be polished on the polishing pad; at least one conditioning arm for conditioning the polishing pad; and, a slurry dispenser, said slurry dispenser being disposed between the at least two polishing arms and the at least one conditioning arm so that slurry dispensed by the slurry dispenser reaches the at least one conditioning arm before it reaches the at least two polishing arms, wherein the at least two polishing arms and the at least one conditioning arm each include at least one vacuum chuck coupled thereto, wherein the at least one vacuum chuck of the at least one conditioning arm assists in spreading out the slurry dispensed by the slurry dispenser.