Patent ID: 7261617

Claim:
A system for regenerating a semiconductor wafer having fabricated patterns on a surface thereof, said system comprising: a mesh conveyor for transporting the semiconductor wafer in a condition that the patterns are faced in an upward direction; a grit blaster installed above said mesh conveyor and having at least one blasting nozzle for blasting grits toward the surface of the semiconductor wafer to remove the patterns from the semiconductor wafer; means for swinging said blasting nozzle in a plane perpendicular to a transporting path of the semiconductor wafer along said mesh conveyor; collecting means provided underneath the mesh conveyor for collecting pulverulent bodies including grits, chips, and dusts falling from said mesh conveyor; separating means connected to said collecting means for separating the grits and chips from the dusts; a dust collector connected to said separating means for collecting the dusts separated by said separating means; and a destacker for consecutively loading the semiconductor wafer one after another onto an upstream side of the mesh conveyor; wherein said destacker comprises: a frame provided adjacent to the upstream side of said mesh conveyor; a stacker mounted on said frame and having a stacking space within which semiconductor wafers are stacked one on top another; a lifting arrangement provided under said stacker for lifting up the semiconductor wafers stacked in the stacking space of the stacker to bring the uppermost one of the semiconductor wafers into a standby position; and a loader mounted on a top portion of the frame for gripping the uppermost one of the semiconductor wafers placed at the standby position to load on the mesh conveyor.