Patent ID: 8384051
Filing Date: 2013-02-26
Classification: B82Y,H01J

Abstract:
1. A drawing apparatus that comprises a blanking deflector array and performs drawing on a substrate with a plurality of charged particle beams passed through the blanking deflector array, the apparatus comprising: a detector having a size for which the detector can simultaneously detect two adjacent charged particle beams among the plurality of charged particle beams, and configured to detect an intensity of a charged particle beam incident thereon; and a controller, wherein the controller is configured to perform a control of a position of the detector and a control of the blanking deflector array such that one of two adjacent charged particle beams is in a blanking state and the other is in a non-blanking state on the detector that is moved, and each of the plurality of charged particle beams becomes in a blanking state and a non-blanking state sequentially on the detector that is moved, to cause the detector to perform an output in parallel with the controls, and to inspect a defect in each blanking deflector in the blanking deflector array based on the output.