Patent ID: 9548183
Date: 2017-01-17
CPC Classifications: H01J

Claim:
1. A charged particle beam writing apparatus comprising: a first generation unit configured to generate a smallest deflection region layer in three or more deflection region layers each having deflection regions of a size different from those of other deflection region layers, for each figure type of a plurality of figure types which can be variably shaped using a first shaping aperture and a second shaping aperture; an assignment unit configured to assign each of a plurality of shot figure patterns to deflection regions of the smallest deflection region layer of a corresponding one of the plurality of figure types; a correction unit configured to perform correction to shift a position of each of the smallest deflection region layer, in accordance with a variable shaping position of the each figure type; and a writing unit configured to write the each of the plurality of shot figure patterns on a target object with a charged particle beam, in a state where the position of the each of the smallest deflection region layer has been corrected for the each figure type.