Patent ID: 6657211
Filing Date: 2003-12-02
Classification: B82Y,H01J

Abstract:
An electron-optical lithography system comprising:an electron source providing an electron beam having a direction of propagation, a condenser system, a mask plane behind said condenser system as seen in said direction of propagation, a projective system that follows said mask plane as seen in said direction of propagation and is excitable such that said mask plane is imaged on a reduced scale in said substrate plane, a projector deflection system in or before said projective system as seen in said direction of propagation, a substrate plane, and a control system, wherein said control system is arranged to change over condenser excitation or deflection elements such that a small focused or shaped beam profile is produced in said mask plane, and wherein said projector deflection system is driven such that a focused or shaped electron beam with a small beam profile is movable in said substrate plane along stored or computed paths.