Patent ID: 8586951
Filing Date: 2013-11-19
Classification: B82Y,H01J

Abstract:
1. A multi charged particle beam writing apparatus, comprising: a stage on which a target object is placed and which is continuously movable; an emitting unit configured to emit a charged particle beam; an aperture member, in which a plurality of openings are formed, configured to receive irradiation of the charged particle beam on a region including all the plurality of openings, and to form multi-beams by making portions of the charged particle beam pass through the plurality of openings; a plurality of blankers configured to perform blanking-deflect regarding beams corresponding to the multi-beams passing through the plurality of openings of the aperture member, respectively; a blanking aperture member configured to shield each of the beams deflected by the plurality of blankers so that the beams deflected by the plurality of blankers are beam-off; a deflector configured to deflect the beams together, which have passed through the blanking aperture member, at each irradiation position of each beam on the target object; a writing processing control unit configured to control writing processing so that a plurality of beams having passed through different openings among the plurality of openings are arranged to align on the target object; and a shot interval adjusting unit configured to adjust shot intervals among beams so that a maximum shot interval among beams being a control grid interval defined by a predetermined quantization size or a size which is prescribed within a predetermined range from the predetermined quantization size, or less when the shot intervals among beams which are arranged to align on the target object are different depending on a place.