| 摘要 |
Producing an exposure data used for exposing a design pattern data of a semiconductor integrated circuit on an exposure medium. Repetitive exposure pattern data is extracted from the design pattern data as a group of exposure pattern data. The group of exposure pattern data includes plural pieces of the repetitive exposure pattern data. A rearrangement information table, which includes information for placing the plural pieces of repetitive exposure pattern data in a predetermined rearrangement area, is generated. The design pattern data is rearranged based on the rearrangement information table to generate the exposure data.
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