Radiant energy – Irradiation of objects or material – Irradiation of semiconductor devices
Reexamination Certificate
2008-04-10
2010-12-14
Wells, Nikita (Department: 2881)
Radiant energy
Irradiation of objects or material
Irradiation of semiconductor devices
C250S492300, C250S3960ML, C250S3960ML, C250S281000, C250S282000
Reexamination Certificate
active
07851772
ABSTRACT:
An ion implantation apparatus according to the invention includes a park electrode as a deflecting apparatus arranged at a section of a beam line from an outlet of a mass analysis magnet apparatus to a front side of a mass analysis slit for deflecting an ion beam in a predetermined direction of being deviated from a beam trajectory line by an operation of an electric field. When the ion beam does not satisfy a desired condition, a park voltage is applied to the park electrode, thereby, the ion beam is brought into an evacuated state by being deflected from the beam trajectory line. As a result, the ion beam cannot pass through the mass analysis slit, and therefore, the ion beam which does not arrive at a wafer to prevent the ion beam which does not satisfy the condition from being irradiated to the wafer.
REFERENCES:
patent: 4980562 (1990-12-01), Berrian et al.
patent: 5751002 (1998-05-01), Ogata et al.
patent: 7005657 (2006-02-01), Low et al.
patent: 7429743 (2008-09-01), Kabasawa et al.
patent: 2008/0251734 (2008-10-01), Tsukihara et al.
patent: 2008/0251737 (2008-10-01), Tsukihara et al.
patent: 2009/0206270 (2009-08-01), Glayish et al.
patent: 2 098 793 (1982-11-01), None
patent: 11-345586 (1999-12-01), None
patent: 2006-156259 (2006-06-01), None
Kabasawa Mitsuaki
Sogabe Hiroshi
Tsukihara Mitsukuni
Yagita Takanori
Yumiyama Toshio
Arent & Fox LLP
Sen Corporation an Shi and Axcelis Company
Wells Nikita
LandOfFree
Ion implantation apparatus and ion implantation method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ion implantation apparatus and ion implantation method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ion implantation apparatus and ion implantation method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4215005