Patent ID: 8487281
Filing Date: 2013-07-16
Classification: B82Y,G03F,H01J

Abstract:
1. An electron beam exposure apparatus comprising: a plurality of column cells arranged above a sample and configured to irradiate electron beams in parallel onto a surface of the sample; an integrated controller configured to generate exposure data including an exposure position, an exposure pattern and an exposure time of each shot of the plurality of column cells; a column cell control unit provided in each of the column cells and configured to control the column cell based on the exposure data; a correction parameter storage unit provided in the integrated controller and configured to store a correction parameter for allowing a relationship between exposure intensity and a line width for a correction target column cell to coincide with a relationship between exposure intensity and a line width for a reference column cell selected from among the plurality of column cells; a reference exposure time storage unit provided in the integrated controller and configured to store reference exposure time required to form a predetermined reference pattern having a line width as designed in the reference column cell; and an exposure time calculating unit provided in the integrated controller and configured to obtain exposure time of the correction target column cell by correcting the reference exposure time based on the correction parameter.