Patent ID: 7810066
Filing Date: 2010-10-05
Classification: B82Y,G03F,H01J

Abstract:
1. An irradiation pattern data generation method for indicating an irradiation pattern when plotting on an object of plotting by energy irradiation according to a variable rectangle mode, said irradiation pattern data generation method comprising: generating, with a rectangular approximation process, a rectangular approximation pattern for a design pattern having diagonal side parts that extend diagonally with respect to an X-axis direction and a Y-axis direction on an XY plane, in which said design pattern is approximated as rectangles; moving, with a first correction process, side portions of said rectangular approximation pattern in said Y-axis direction to generate a first correction pattern; expanding, with a second correction process, the side portions of said first correction pattern in said X-axis direction and said Y-axis direction to generate an irradiation pattern; and plotting, with a plotting device, said radiation pattern upon said object of plotting by irradiating energy upon said object of plotting in said irradiation pattern.