Patent ID: 8624205

Claim:
A charged particle beam writing apparatus comprising: an aperture array configured to be capable of forming a plurality of charged particle beams using a plurality of openings; an element array, including a plurality of main elements disposed on a predetermined plane and a plurality of auxiliary elements which are disposed on the predetermined plane and adjacent to the main elements, configured to apply an electromagnetic field to the plurality of charged particle beams; and a control unit configured to acquire information for specifying, from among the plurality of main elements, an element being unable to control the charged particle beam, and control the element array based on the acquired information, wherein the control unit is configured to control the element array such that only the main elements are used when there is no defect, while when there is a main element having a defect, both of the main elements other than the main element having the defect and the auxiliary element are used; wherein the plurality of main elements are disposed in an area opposing the plurality of openings; and wherein the plurality of auxiliary elements are disposed in an area different from the area where the plurality of main elements are disposed, and wherein the charged particle beam writing apparatus further comprises a first deflector array including a plurality of deflectors and configured to be capable of deflecting the plurality of charged particle beams such that part of the plurality of charged particle beams are led to the auxiliary element, and wherein the control unit controls the first deflector array in accordance with the information; and wherein the first deflector array is configured such that one deflector deflects a plurality of charged particle beams all together at once.