Patent ID: 6946668
Filing Date: 2005-09-20
Classification: B82Y,H01J,Y10S

Abstract:
1. An electron beam lithography apparatus dividing an exposure pattern into a rectangular shape of a size less than or equal to a maximum shot size, and said divided rectangular patterns being sequentially exposed on a substrate by a rectangular electron beam, comprising: a scattering coefficient correction calculation circuit setting a preliminary set correction parameter for a longitudinal dimension and a lateral dimension of said rectangular pattern to be exposed, an exposure area ratio calculating circuit for setting a ratio of an area exposed for a reference area of a region on said substrate, an intrinsic deflection correcting circuit for adjusting said exposure energy on the basis of the correction parameter set by said scattering coefficient correction calculation circuit and the ratio of the area to be exposed relative to the reference area set by said exposure area ratio calculating circuit, and an electron beam plotting device column performing exposure on the basis of an intensity of exposure adjusted by said intrinsic deflection correcting circuit.