Patent Document ID: 20130159944
Application ID: 13615691
Patent Status: 0

Claim One:
1. A flare map calculating method comprising: dividing a pattern region having a plurality of patterns to set a plurality of division regions in the pattern region; performing a first exposure simulation in each of the division regions to calculate an optical image intensity distribution in each of the division regions; calculating an average value of the optical image intensity distribution of the division regions as an average value of optical intensity distribution in each of the division regions; generating a pattern or plural patterns, which has a pattern density corresponding to the average value of the optical intensity distribution, as a corresponding density pattern in each of the division regions; generating a density map representing a pattern density distribution within the pattern region based on the corresponding density pattern; and calculating a flare map representing a flare intensity distribution within the pattern region by convolution integral of the density map and a point spread function.