Patent ID: 8779394
Filing Date: 2014-07-15
Classification: B82Y,H01J

Abstract:
1. A charged particle beam writing apparatus for writing to small regions of a target, comprising: a transmission side unit configured to transmit a plurality of processed data, which were generated by performing data conversion processing in parallel for writing data for each small region made by virtually dividing a writing region into a plurality of small regions; a reception side unit configured to receive the plurality of processed data; a division/distribution processing unit arranged in the transmission side unit and configured to divide and distribute the plurality of processed data into a plurality of data groups each having an approximately equal data amount respectively; a plurality of transmitting units arranged in the transmission side unit and configured to transmit the plurality of processed data of the plurality of data groups such that at least one processed data which has been divided and distributed to each of the plurality of data groups is transmitted in descending order with respect to order of writing processing for each data group and the plurality of data groups are transmitted in parallel; a plurality of memories arranged in the reception side unit and configured to store the plurality of processed data of the plurality of data groups having been transmitted in parallel such that each of the plurality of memories stores processed data of each different one of the plurality of data groups; a writing order data output unit arranged in the reception side unit and configured to read out the plurality of processed data from the plurality of memories and output them, regardless of data group and in order of writing processing; and a writing unit configured to write a pattern on a target workpiece with a charged particle beam, based on each of the plurality of processed data output in the order of writing processing.