Patent ID: 7139996
Filing Date: 2006-11-21
Classification: G03F

Abstract:
1. A mask pattern correction apparatus comprising: an input unit having stored therein at least design patterns, transfer conditions for said design patterns, and key point information for said design patterns; an optical proximity effect correcting means for correcting an optical proximity effect with respect to a design pattern and a transfer condition output from said input unit; a simulation means receiving corrective patterns and transfer conditions from said optical proximity effect correcting means for finding by simulation a transfer pattern to be obtained when performing exposure under predetermined transfer conditions using a corrected pattern obtained by said correction of the optical proximity effect from said optical proximity effect correcting means; a transfer pattern measuring means receiving said design patterns and said key point information from said input unit for measuring a dimension or location of a portion functionally related with device characteristics in said found transfer pattern; and a pattern deforming means for deforming said corrected pattern so that the measured portion of said transfer pattern falls within an allowable range when said dimension or location is out of said allowable range.