Patent ID: 6722962
Filing Date: 2004-04-20
Classification: B24B

Abstract:
A polishing system comprising:a surface plate having a lower surface, said lower surface having an outer peripheral portion and at least one radial groove; a polishing pad mounted on the outer peripheral portion, said polishing pad having an inner peripheral side and having a polishing surface, brought in slide-contact with a surface to be polished of an object to be polished, for polishing the surface to be polished; wherein said polishing surface is tilted at a specific angle with respect to a plane perpendicular to a rotational axis of said polishing pad; a slurry feeder; and a nozzle pipe, wherein the nozzle pipe is provided in the center of said polishing pad so as to supply a slurry fed from said slurry feeder, said slurry being supplied by centrifugal force due to rotation of said polishing pad on the inner peripheral side of said polishing pad through said radial groove.