Patent ID: 6077310
Filing Date: 2000-06-20
Classification: G03F,Y10S

Abstract:
An apparatus for correcting an optical proximity effect in a lithography process for an LSI (Large-Scale Integration) pattern, said apparatus comprising:a hierarchical processing portion for extracting area data to be processed from hierarchical data and inputting/outputting the area data;a rule-based correction portion for performing correction by use of a correction value calculated beforehand, such that the correction corresponds to a pattern and layout data surrounding the pattern;a simulation-based correction portion for calculating an amount of correction and executing correction based on a process simulating program; anda determination portion for dividing the pattern and layout data into areas to be corrected by rule-based correction and areas to be corrected by simulation-based correction, and for determining which correction portion, the rule-based correction portion and the simulation-based correction portion, should be used for correcting each of the areas.