Ion beam line
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United States of America Patent
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Nov 22, 2016
Grant Date -
Jan 7, 2016
app pub date -
Aug 20, 2015
filing date -
Mar 15, 2013
priority date (Note) -
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Abstract
In one aspect, an ion implantation system is disclosed, which comprises a deceleration system configured to receive an ion beam and decelerate the ion beam at a deceleration ratio of at least 2, and an electrostatic bend disposed downstream of the deceleration system for causing a deflection of the ion beam. The electrostatic bend includes three tandem electrode pairs for receiving the decelerated beam, where each electrode pair has an inner and an outer electrode spaced apart to allow passage of the ion beam therethrough. Each of the electrodes of the end electrode pair is held at an electric potential less than an electric potential at which any of the electrodes of the middle electrode pair is held and the electrodes of the first electrode pair are held at a lower electric potential relative to the electrodes of the middle electrode pair.
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