Patent ID: 7966580
Filing Date: 2011-06-21
Classification: G03F,G06F,Y02P

Abstract:
1. A process-model generation method comprising: forming a test pattern of a film to be processed by exposing a test mask having a mask pattern formed thereon with a lithography system; obtaining pattern information including at least one of generating, with respect to various pattern areas with different pattern information, a plurality of process models having a model parameter adjusted so as to correspond to the pattern information for each of the various pattern areas; performing a simulation of the mask pattern by using each of the process models to predict a plurality of model patterns; calculating a difference in dimension between the test pattern and each of the plurality of model patterns to the pattern information; extracting a model pattern in which the difference in dimension from the test pattern is within a scope of specification from the plurality of model patterns for each area divided according to the pattern information; and specifying the process model, which predicts the extracted model pattern, as the mask pattern.