Patent ID: 8779379
Filing Date: 2014-07-15
Classification: B82Y,H01J

Abstract:
1. An acquisition method of a charged particle beam deflection shape error comprising: writing a plurality of figure patterns, each being smaller than a deflection region of a plurality of deflection regions, with a charged particle beam, at a pitch different from an arrangement pitch of the plurality of deflection regions arranged to be deflected by a deflector that deflects the charged particle beam; synthesizing writing positions of the plurality of figure patterns into one virtual deflection region of a same size as the deflection region, based on a positional relationship between the deflection region including a position where a figure pattern concerned of the plurality of figure patterns has been written and the position where the figure pattern concerned has been written; and calculating a shape error in a case of writing a pattern in the deflection region, using a synthesized writing position of each of the plurality of figure patterns, and outputting the shape error.