Patent ID: 6717160
Filing Date: 2004-04-06
Classification: B82Y,H01J

Abstract:
A beam direct-writing apparatus for performing beam direct-writing on a substrate, comprising:a beam emission part for emitting a direct-writing beam onto said substrate; a deflection part for deflecting said beam; a holding part for holding said substrate; and a path setting part for obtaining a path passing through a plurality of writing points on said substrate, wherein said path setting part executes: a region dividing step for dividing a two-dimensional writing region into a plurality of divided regions so that a divided region is smaller as density of writing points contained in said divided region is higher; a region passing order setting step for setting a region passing order which is an order for said path to pass through said plurality of divided regions; a writing point setting step for setting a first writing point and a second writing point for each of said plurality of divided regions on the basis of said region passing order; a sectional path setting step for obtaining a sectional path passing through points from said first writing point to said second writing point in each of said plurality of divided regions by using a predetermined path setting algorithm; and a sectional path connecting step for connecting said second writing point in each of said plurality of divided regions to said first writing point in the next divided region according to said region passing order.