Patent Document ID: 8910093
Application ID: 13200668
Patent Status: 1

Claim One:
1. A method for modeling a pattern intended to reside in a photoresist layer on a substrate, the method comprising: in a computer process, forming a stimulated latent acid image in the photoresist layer; reducing dimensions of the simulated latent acid image by one specified dimension to form a simulated latent acid image with reduced dimensions; and determining the pattern by calculating a time-dependent development rate profile of the simulated latent acid image in the photoresist layer; wherein the reducing dimensions includes removing dependency of the simulated latent acid image on said one specified dimension by weight-averaging of said simulated latent acid image such that a first portion of the simulated latent image located farther away from a top of the photoresist layer is weighted higher than a second portion of the simulated latent image located closer to said top.