Patent ID: 8183545
Filing Date: 2012-05-22
Classification: B82Y,H01J

Abstract:
1. A charged particle beam writing apparatus comprising: a data storage unit configured to store layout data defining a plurality of figure patterns in a chip region; a dividing unit configured to divide the chip region in the layout data into a plurality of process regions; a shot data generating unit configured to perform distributed processing on pattern data of the figure patterns in the process regions using a plurality of computing processors so as to convert the pattern data to shot data for shooting a charged particle beam onto a target object; a determining and instructing unit configured to compare an amount of output data from each of the computing processors with a predetermined threshold, and when the amount of the output data is larger than the threshold, instruct corresponding one of the computing processors to divide corresponding one of the process regions into smaller regions and continue the data processing; and a writing unit configured to write on the target object using the shot data.