Patent ID: 7425710
Filing Date: 2008-09-16
Classification: G02F,H01J

Abstract:
1. An anode layer particle beam device, comprising: a base; a magnetic pole made of magnetic and conductive material and used as a cathode, wherein the magnetic pole is positioned on the base and includes an inner wall and an outer wall; an insulation layer formed on the base to be located between the inner wall and the outer wall; at least an anode made of metallic material, and formed on the insulation layer to be located between the inner and the outer wall so that an electric discharge channel is formed between the insulation layer and the inner and the outer walls of the magnetic pole, as well as between the anode and the inner and the outer walls of the magnetic pole; an orifice set on a radiation path of the anode; and an insulating material placed in the electric discharge channel to serve as an insulator between the anode and the magnetic pole; thereby, a process gas can be put in the electric discharge channel and be applied with biased electric field so that with the anode and the magnetic pole, a particle beam is generated and radiated out from the orifice.