Patent ID: 8702474

Claim:
A method for regenerating a polishing pad for polishing semiconductor wafers comprising: supplying a polishing pad support surface on a polishing pad sub plate, equipping an upper surface of a polisher rotation table with a sub plate main body, together with creating said polishing pad support surface to which said polishing pad is stacked, aligned and fixed by means of a central surface portion of said sub plate main body, fashioning a fitting ring to an outer edge of the said sub plate main body, which ring is mated to an external circumference of said polisher rotation table, and protruding in the downward direction guided by an external circumferential surface of said polisher rotation table, said polishing pad can be detached from the rotation table, and regenerating the surface of said polishing pad wherein said polishing pad is fixed by the fitting ring to said polishing pad supporting surface of said polishing pad sub plate.