Patent ID: 7615763
Filing Date: 2009-11-10
Classification: H01J

Abstract:
1. An ion implantation system comprising: an ion source that generates an ion beam along a beam path; a mass analysis component downstream of the ion source that performs mass analysis on the ion beam; a magnetic scanner downstream of the mass analysis component that generates a time varying oscillatory magnetic field across a portion of the beam path; a constant magnetic field generator proximate to the magnetic scanner that generates a static magnetic field across the beam path to mitigate zero field effects, the constant magnetic field generator comprising: a parallelizer downstream of the magnetic scanner that redirects the ion beam parallel to a common axis; and an end station positioned downstream of the parallelizer component that receives the ion beam; wherein the static magnetic field generated by the constant magnetic field generator varies in amplitude along the beam path from an entrance of the magnetic scanner to an exit of the magnetic scanner.