Patent ID: 7767470

Claim:
A method for producing semiconductor wafers having an edge profile, comprising the following steps: a) separating a semiconductor wafer from a semiconductor ingot; b) measuring the edge profile of the semiconductor wafer, machining the semiconductor wafer, the edge profile of the semiconductor wafer being altered, wherein the edge profile of the semiconductor wafer after machining comprises a facet on each of the front and rear sides of the semiconductor wafer; c) again measuring the edge profile of the semiconductor wafer, comparing the results of the edge profile measuring in step b) with the edge profile measuring in step c) and thereby determining the material removal caused by the machining in a location-dependent manner in a multiplicity of positions over the edge profile; d) ascertaining the location-dependent deviations of the measured edge profile from a desired edge profile, and e) altering the machining parameters in such a way that a subsequent machining of a further semiconductor wafer leads to an edge profile which has smaller deviations from the desired edge profile than the edge profile of the previously machined semiconductor wafer.