Patent ID: 7577556
Filing Date: 2009-08-18
Classification: G03F

Abstract:
1. A computer-readable storage medium having stored thereon a computer program for use in optical corrections to obtain a more accurate optical image for simulating an amount of occurrence of local flare which occurs in an exposure process in manufacturing a semiconductor executable to perform the steps of: dividing a layout of a photo mask into a plurality of areas; calculating an average value of light intensity in each of the areas; simulating and estimating an amount of occurrence of local flare in each of the areas on the basis of each of the average values, for use in optical corrections to obtain a more accurate optical image, and correcting dimensions of the photo mask based on the estimated amount of occurrence of local flare, wherein when a circular-shaped light source is used, the average value of light intensity  and N is 1 or more natural number, F when a ring-shaped light source is used, the average value of light  intensity and N is 1 or more natural number, F