Patent ID: 6444483
Filing Date: 2002-09-03
Classification: G03F

Abstract:
A method of producing partial-area mask data files for use in a charged particle beam exposure system or an inspection apparatus based on a CAD data of a full area of a semiconductor integrated circuit, said partial-area mask data files being of respective partial areas obtained by dividing said full area, said method comprising:dividing said full area into a plurality of unit areas; producing a full-area mask data file based on said CAD data of said full area, and producing full-area header information having mask top data addresses of respective said unit areas and positional information on said unit areas; producing partial-area header information for each of said partial areas based on said full-area header information; and extracting mask data of each of said partial areas from said full-area mask data file based on said partial-area header information to produce said partial-area mask data file corresponding to said partial-area header information.