Patent ID: 6835937
Filing Date: 2004-12-28
Classification: B82Y,H01J

Abstract:
A charged particle beam exposure system which draws a pattern on an object to be exposed by a plurality of charged particle beams emitted from a plurality of element electron optical systems, said system comprising:(a) a storage device storing: (i) a standard data for controlling the irradiation duty of each of the plurality of the charged particle beams on each of irradiation positions to the object, depending on the pattern, (ii) plural pieces of proximity effect correction data for reducing an influence of a proximity effect, and (iii) calibration data for reducing irradiation dose variations among the plurality of the charged particle beams; and (b) a computing device for correcting the standard data by one piece of proximity effect correction data, the one piece of proximity effect correction data being selected from the plural pieces of proximity effect correction data in accordance with a condition of the object, on each of the irradiation positions and calibrating the irradiation duty of each of the plurality of the charged particle beams by the calibration data, to generate the drawing data.