Patent ID: 6891174

Claim:
An ion implantation system, comprising: an ion source adapted to produce an ion beam along a path; a beamline assembly located downstream from the ion source along the path, the beamline assembly comprising: a beamguide comprising an entrance end downstream of the ion source and an exit end downstream of the entrance end, the beamguide defining a passageway between the entrance and exit ends through which the ion beam is transported along the path; a photoelectron source extending substantially along an entire length of the passageway between the entrance and exit ends; and a photon source providing photons to at least a portion of the photoelectron source to cause emission of photoelectrons from the photoelectron source; and an end station located downstream from the beamline assembly along the path, the end station being adapted to support at least one wafer along the path for implantation using the ion beam.