Radiant energy – Irradiation of objects or material – Irradiation of semiconductor devices
Reexamination Certificate
2007-06-12
2007-06-12
Berman, Jack (Department: 2881)
Radiant energy
Irradiation of objects or material
Irradiation of semiconductor devices
C250S492300, C250S492100, C250S492220, C313S361100, C313S362100, C315S111010, C430S030000, C257S061000
Reexamination Certificate
active
10559128
ABSTRACT:
An ion doping system includes a chamber11, an exhausting section13for exhausting gases from the chamber, an ion source12provided for the chamber, and an accelerating section23for extracting the ions, generated in the ion source12, from the ion source12and accelerating the ions toward a target. The ion source12includes an inlet port14to introduce a gas including a dopant element, a filament15emitting thermo electrons, and an anode electrode17to produce an arc discharge between the filament and itself. The ion source12decomposes the gas through the arc discharge, thereby generating ions including the dopant element. The ion doping system controls the arc discharge such that a constant amount of arc current flows between the filament and the anode electrode.
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Aichi Hiroshi
Nakanishi Ken
Berman Jack
Birch & Stewart Kolasch & Birch, LLP
Hashmi Zia R.
Sharp Kabushiki Kaisha
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