Patent ID: 8343873

Claim:
A method for producing a semiconductor wafer comprising steps in the order of: (a) bilateral material-removing processing of the semiconductor wafer, the semiconductor wafer being separated from a single crystal; (b) rounding off an edge of the semiconductor wafer; (c) grinding front and back sides of the semiconductor wafer, the grinding of each side including holding one of the sides with a wafer holder and working the other of the sides with a grinding tool; (d) polishing at least one of the front and back sides of the semiconductor wafer with a polishing cloth including firmly bound abrasives; (e) treating both the front and back sides of the semiconductor wafer with an etching medium so as to carry out a material removal of no more than 1μm on each of the front and back sides; (f) polishing the front side of the semiconductor wafer using a polishing cloth including firmly bound abrasives and simultaneously polishing the back side of the semiconductor wafer using a polishing cloth that is flee of abrasives while providing a polish including abrasives between the back side of the semiconductor wafer and the polishing cloth that is free of abrasives; (g) polishing the edge of the semiconductor wafer; and (h) polishing the back side of the semiconductor wafer using a polishing cloth including firmly bound abrasives and simultaneously polishing the front side of the semiconductor wafer using a polishing cloth that is free of abrasives while providing a polish including abrasives between the front side of the semiconductor wafer and the polishing cloth that is free of abrasives.