Patent ID: 8729509
Filing Date: 2014-05-20
Classification: B82Y,G21K,H01J

Abstract:
1. A drawing apparatus which performs drawing of a pattern in a shot region on a substrate with a plurality of charged particle beams, the apparatus comprising: a projection system configured to project the plurality of charged particle beams onto the substrate; a stage configured to hold the substrate and be movable with respect to the projection system; a measurement device configured to detect a charged particle beam that reaches the measurement device due to a charged particle beam incident, via the projection system, on a mark formed outside the shot region, to perform measuring of a position of the mark; and a controller configured to control the performance of the drawing and the performance of the measuring so that, while at least one charged particle beam among the plurality of charged particle beams is incident inside the shot region, the drawing is performed with the at least one charged particle beam, and, while the at least one charged particle beam is incident on the mark and at least another charged particle beam among the plurality of charged particle beams is incident inside the shot region, the measuring is performed with the at least one charged particle beam, in parallel with the drawing being performed with the at least another charged particle beam.