Patent ID: 7962863
Filing Date: 2011-06-14
Classification: G03F

Abstract:
1. A computer-implemented method for determining a model for predicting printability of reticle features on a wafer, comprising: generating different generated models; generating simulated images of the reticle features printed on the wafer using the different generated models for a set of different values of exposure conditions; determining one or more characteristics of the reticle features of the simulated images; comparing the one or more characteristics of the reticle features of the simulated images to one or more characteristics of the reticle features printed on the wafer using a lithography process; and selecting one of the different generated models as the model to be used for predicting the printability of the reticle features based on results of the comparing step, wherein generating the different generated models, generating the simulated images, said determining, said comparing, and said selecting are performed using a computer system.