Patent ID: 6486479
Filing Date: 2002-11-26
Classification: B82Y,H01J,H01L

Abstract:
A charged particle beam exposure system for exposing a pattern on an object, comprising:beam source means for producing a charged particle beam; beam shaping means for shaping said charged particle beam to produce a plurality of charged particle beam elements in accordance with exposure data indicative of a dot pattern to be exposed on said object; focusing means for focusing said charged particle beam elements upon a surface of said object; and deflection means for deflecting said charged particle beam elements over said surface of said object, said beam shaping means comprising: a substrate formed with a plurality of apertures for shaping said charged particle beam into said plurality of charged particle beam elements, said plurality of apertures being arranged in a row and column formation; a plurality of common electrodes provided on said substrate respectively in correspondence to said plurality of apertures, each of said plurality of common electrodes being provided in a first side of a corresponding aperture, a group of said common electrodes being aligned in any of a row direction or a column direction of said row and column formation of apertures; and a plurality of blanking electrodes provided on said substrate respectively in correspondence to said plurality of apertures, each of said plurality of blanking electrodes being provided in a second, opposite side of a corresponding aperture on said substrate, wherein relative positions of said first and second sides are identical for all of said plurality of apertures.