Patent ID: 9437396
Filing Date: 2016-09-06
CPC Classification: H01J

Claim Text:
1. A multi charged particle beam writing apparatus comprising: a stage configured to mount a target object and to be continuously movable, a resist having been applied to the target object; an emission unit configured to emit a charged particle beam; an aperture member, in which a plurality of openings are formed, configured to form multiple beams by letting a region including a whole of the plurality of openings be irradiated with the charged particle beam and letting portions of the charged particle beam respectively pass through a corresponding opening of the plurality of openings; a plurality of blankers configured to respectively perform blanking deflection of a corresponding beam in the multiple beams having passed through the plurality of openings of the aperture member; a blanking aperture member configured to block each beam having been deflected to be in a beam-off state by the plurality of blankers; a dose calculation unit configured to a deflection control unit configured to control the plurality of blankers so that the first beam and the second beam are irradiated on the target object, the first beam irradiated for the first dose and resolves the resist and the second beam irradiated for the second dose and does not resolve the resist.