Patent ID: 7799692

Claim:
A method for the treatment of a semiconductor wafer, comprising the following steps: a) position-dependent measuring of a parameter which characterizes the semiconductor wafer in order to determine the position-dependent value of the parameter over an entire surface of the semiconductor wafer, b) oxidizing the surface of the semiconductor wafer with an oxidizing agent which contacts the surface of the wafer, while simultaneously exposing the entire surface by light of a variable light intensity, the oxidation rate and the thickness of the resulting oxide layer thus being varied by the light intensity at the surface of the semiconductor wafer, and c) removing the oxide layer, the light intensity in step b) being predefined in a position-dependent manner such that over the wafer surface, the differences of the position-dependent values of the parameter measured in step a) are reduced by the position-dependent oxidation rate resulting from the position-dependent light intensity in step b) and the subsequent removal of the oxide layer in step c).