Patent ID: 6332834
Filing Date: 2001-12-25
Classification: B24B

Abstract:
A method of grinding a workpiece, using a workpiece holding unit that includes a pad holding the workpiece, a rotating shaft attaching the pad at one end thereof, and a cylindrical member rotatably supporting the rotating shaft, comprising the steps of:rotating the workpiece, formed of a circular thin plate about a center axis thereof, by rotating the rotating shaft and the pad holding the workpiece;rotating a disk-shaped rotating grinding wheel about an axis thereof disposed substantially parallel to a plane of the workpiece; andperforming a relative feeding movement between the workpiece and said grinding wheel such said rotating grinding wheel moves along at least one part of an edge portion of the workpiece in a thickness direction of the workpiece, while concurrently rotating the workpiece and said rotating grinding wheel,whereby an outer peripheral surface of said rotating grinding wheel grinds the edge portion of the workpiece.