Patent ID: 8063390
Filing Date: 2011-11-22
Classification: H01J

Abstract:
1. An electron beam and ion beam system including an electron beam, a first ion beam, and a second ion beam, comprising: a vacuum chamber to allow passage, merging and separation of said electron beam and said first ion beam including a first overlap region wherein said electron beam and said first ion beam are overlapped, and to allow passage, merging and separation of said electron beam and said second ion beam including a second overlap region wherein said electron beam and said second ion beam are overlapped; an electron supply device including a cathode to produce said electron beam; an electron collector including a collection plate to collect said electron beam; a first electrode located proximate to said first overlap region and biased at a potential to set the velocity of said electron beam to the desired velocity of said first ion beam; a second electrode located proximate to said second overlap region and biased at a potential to set the velocity of said electron beam to the desired velocity of said second ion beam; a first magnetic field production device to create magnetic fields to guide said electron beam along a desired path, merge and separate said electron beam and said first ion beam; a second magnetic field production device to create magnetic fields to guide said electron beam along a desired path, merge and separate said electron beam and said second ion beam.