Patent ID: 6453274
Filing Date: 2002-09-17
Classification: G03F,G06T

Abstract:
A method of forming a pattern on and processing a wafer comprising:generating pattern data for a circuit pattern of an integrated circuit; correcting the pattern data to compensate for the light proximity effect that occurs during transferring the circuit pattern to a wafer using light by forming an optical projection image of the pattern data, predicting the size of the pattern that will be transferred to the wafer on the basis of the projection image, calculating a difference between the size of the pattern predicted to be transferred and the size of the pattern data, and correcting the pattern data by an amount equal to the difference; preparing a mask using the corrected data to produce a mask pattern; exposing a wafer to light passing through the mask pattern, thereby transferring the mask pattern to the wafer; and processing the wafer using the mask pattern transferred to the wafer.