Patent ID: 7652271
Filing Date: 2010-01-26
Classification: B82Y,H01J

Abstract:
1. A lithographic apparatus for writing a pattern using a charged particle beam, said apparatus comprising: an electric field intensity calculation unit operative to calculate an electric field intensity of another region different from a specified region of a workpiece due to electrical charge to be electrified by irradiation of a charged particle beam to the specified region; a correction amount calculator unit operative to calculate based, on the electric field intensity, a correction amount for correcting an irradiation position upon irradiation of the charged particle beam to said another region; and a pattern writing unit operative to irradiate based on the correction amount the charged particle beam to said another region to thereby perform pattern drawing in said another region, wherein an electric field intensity Ex(z) at a coordinate point (x, y, z) is calculated by solving the following equation using a dielectric constant of a vacuum ∈