Patent ID: 6733932
Filing Date: 2004-05-11
Classification: B82Y,G03F,H01J,Y10S

Abstract:
A mask lithography data generation method for an electron beam exposure mask used in electron beam lithography where a polygon-shaped pattern is divided into rectangles, comprising the steps of:dividing layout data that shows a form of said pattern into selected region data for a selected region and unselected region data for an unselected region, said selected region being a part of said pattern that needs to be formed precisely and said unselected region being a part of said pattern that may be formed less precisely than the selected region; dividing said selected region data into a plurality of pieces of rectangle data by dividing said selected region into a plurality of rectangles whose shortest sides are longer than or equal to a reference value; and recombining said selected region data that has been divided into said plurality of pieces of rectangle data and said unselected region data.