Patent ID: 6458688
Filing Date: 2002-10-01
Classification: B24B,H01L

Abstract:
A process for producing a semiconductor wafer comprisingsimultaneous polishing a front surface and a rear surface of the semiconductor wafer between rotating polishing plates; supplying a polishing fluid during the polishing; the semiconductor wafer lying in a cutout in a carrier and being held on a specific geometric path, and the carrier being of defined thickness; the semiconductor wafer having a starting thickness prior to polishing and an end thickness after polishing; and wherein the starting thickness of the semiconductor wafer is 20 to 200 &mgr;m greater than a thickness of the carrier and polishing the semiconductor wafer until the end thickness of the semiconductor wafer is 2 to 20 &mgr;m greater than the thickness of the carrier; and at least 5 &mgr;m of material being removed during the polishing.