Patent ID: 8686374
Filing Date: 2014-04-01
Classification: B82Y,H01J

Abstract:
1. A drawing apparatus which performs drawing on a substrate with a beam, the apparatus comprising: a generation device configured to generate drawing data; a blanking device configured to blank the beam; and a blanking controller configured to control the blanking device, wherein the blanking controller includes a first storage device, a second storage device, and a third storage device configured to respectively store the drawing data generated by the generation device, the blanking controller being configured to control the blanking device based on the drawing data stored in the third storage device, and control operations of the first storage device, the second storage device, and the third storage device so that an operation of storing the drawing data generated by the generation device in a selected one of the first storage device and the second storage device, and an operation of reading out the drawing data stored in the other of the first storage device and the second storage device and storing the readout drawing data in the third storage device are executed in parallel.