Beam deflecting method, beam deflector for scanning, ion...

Radiant energy – With charged particle beam deflection or focussing – Magnetic lens

Reexamination Certificate

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C250S306000, C250S307000, C250S310000, C250S311000, C250S492100, C250S492200, C250S492300, C250S492210, C250S492220, C250S492230

Reexamination Certificate

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07138641

ABSTRACT:
A beam deflector for scanning performs deflecting of a charged particle beam having a regular trajectory in a vacuum space to thereby periodically change the trajectory of the charged particle beam. The beam deflector comprises a pair of deflection electrodes disposed so as to confront each inner electrode surface having a symmetrical concave extending in a direction of a beam trajectory.

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US 7,041,992, 05/2006, Stengl et al. (withdrawn)
Olson J C et al., “Scanned beam uniformity control in the VIISta 810 ion implanter”, Ion Implantation Technology Proceedings, 1998 International Conference on Kyoto, JAPAN, Jun. 22, 1998, PP. 22-26, vol. 1, Piscataway, NJ.

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