Charged particle beam writing apparatus and charged particle beam writing method
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United States of America Patent
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Nov 5, 2019
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N/A
app pub date -
Oct 10, 2016
filing date -
Oct 10, 2016
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Abstract
A apparatus according to an embodiment includes a unit to generate first blocks in a writing region in which at least one of writing groups respectively using different base doses is to be written, a unit to generate second blocks for proximity effect correction, in the each of the regions of the groups, a unit to calculate an area density in each of the first blocks, a unit to perform a weighting calculation on the area density for each of the first blocks by using a base dose of a corresponding group, a unit to calculate a dose coefficient for proximity effect correction, for each of the second blocks, by using a corresponding weighted area density, and a unit to calculate a dose by using the base dose of the each of the groups and the dose coefficient of the each of the second blocks.
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