Patent ID: 8423921
Filing Date: 2013-04-16
Classification: B82Y,G03F,H01J

Abstract:
1. A method for verifying data including information related to areas with graphics disposed therein, the data being inputted to a writing apparatus that uses a charged particle beam, comprising: inputting data to a first arithmetic unit; delimiting each area contained in the data with meshes each having a predetermined size via a division unit; determining an area value of a graphic lying within each of the meshes via a second arithmetic unit and a center-of-gravity position thereof via a third arithmetic unit; checking for every mesh whether the area value is less than or equal to a predetermined value via an inspection unit; determining a range allowable for an x coordinate of the center-of-gravity position using the area value when the area value is less than or equal to the predetermined value, and checking whether the x coordinate of the center-of-gravity position falls within the range; determining a range allowable for a y coordinate of the center-of-gravity position using the area value and the x coordinate of the center-of-gravity position when the x coordinate of the center-of-gravity position falls within the range, and checking whether the y coordinate of the center-of-gravity position falls within the range; and performing at least one of a proximity effect correction and a fog correction using the area value and the center-of-gravity position when the y coordinate of the center-of-gravity position falls within the range via a correction unit.