Patent ID: 8610091
Filing Date: 2013-12-17
Classification: B82Y,G03F,H01J

Abstract:
1. A charged particle beam writing apparatus, comprising: a storage unit configured to input and store a plurality of set data including a set of a proximity effect correction coefficient map and a base dose map of a beam; a first dose calculating unit configured to read each the set data and to calculate a first dose map for each set; a dimension map creation unit configured to create a dimension map of a pattern by using the first dose map calculated for each set; an adder configured to add dimensions of all sets for each position of the dimension map by using the dimension map of each set; a set map creation unit configured to create a set of a proximity effect correction coefficient map and a base dose map by using an added dimension map after addition; a second dose calculating unit configured to calculate a second dose map by using a created set of the proximity effect correction coefficient map and the base dose map; and a writing unit configured to write the pattern to a target object by using a charged particle beam of a dose defined in the second dose map.