Patent Number: 
Section: claims

1. A lithography system comprising:a cathode adapted to emit an electron beam;a beam-homogenizing structure, capable of increasing at least one of the uniformity and energy of the electron beam, the beam-homogenizing structure including,at least one power supply, the at least one power supply supplying an applied voltage V, including a DC voltage and a smaller AC voltage andat least one magnet; anda mask adapted to accelerate the electron beam to form a pattern on a wafer, the mask being within the electron beam, the mask being fabricated of a conductive material and electrically connected to the at least one power supply. 2. The lithography system of claim 1, wherein said cathode is a cold cathode. 3. The lithography system of claim 2, wherein said cold cathode is at least one of a field emitter array (FEA), a photocathode and a tunneling cathode. 4. The lithography system of claim 3, wherein said beam-homogenizing structure includes at least one emitter tip and at least one gate. 5. The lithography system of claim 1, said beam-homogenizing structure spatially altering helical trajectories of electrons of the electron beam. 6. The lithography system of claim 1, wherein an electric field of the at least one power supply and a magnetic field of the at least one magnet are parallel. 7. The lithography system of claim 1, the at least one magnet including at least two magnets, a first magnet facing the cathode and a second magnet facing the mask. 8. The lithography system of claim 1, wherein the at least one magnet is at least one of a permanent magnet and an electromagnet. 9. The lithography system of claim 8, wherein the permanent magnet is at least one of an Nd—Fe—B magnet and a rare earth cobalt magnet. 10. The lithography system of claim 1, wherein said mask is at least one of a stencil mask and a membrane mask. 11. The lithography system of claim 10, wherein the stencil mask includes an array of alternately relatively electron permeable thin regions and relatively electron-impermeable thicker regions. 12. The lithography system of claim 10, wherein the membrane mask includes a thicker, relatively electron-impermeable supporting layer, a thinner patterned and relatively electron-permeable layer, and a thinner relatively electron-permeable membrane. 13. The lithography system of claim 1, wherein the lithography system is a proximity electron beam lithography (PEL) system.