Patent ID: 6709981
Filing Date: 2004-03-23
Classification: B24B,H01L,Y10S

Abstract:
A method of manufacturing a semiconductor wafer having a front surface and a back surface, the method comprising the operations of;providing an ingot of semiconductor material; slicing the wafer from the ingot; processing the wafer to increase parallelism of the front surface and the back surface; and final polishing the front surface by: a) positioning the wafer between a first pad and a second pad, and b) obtaining motion of the front and back surfaces of the wafer relative to the first and second pads to maintain parallelism of the front and back surfaces, to remove less than about 1.5 microns of wafer material and to produce a finish on at least the front surface of the wafer so that after cleaning the front surface is prepared for integrated circuit fabrication.