Radiant energy – Irradiation of objects or material – Irradiation of semiconductor devices
Reexamination Certificate
2007-06-12
2007-06-12
Wells, Nikita (Department: 2881)
Radiant energy
Irradiation of objects or material
Irradiation of semiconductor devices
C250S491100, C250S492200, C250S492300, C250S442110, C250S3960ML, C250S398000
Reexamination Certificate
active
11074645
ABSTRACT:
An electron beam exposure apparatus comprising: column1for irradiating an electron beam to wafer10serving as a sample; sample chamber3having vacuum pump40as a vacuum exhaustion unit for controlling the internal unit to a vacuum atmosphere; stage4A arranged in the sample chamber3for holding and moving the wafer10;and first mounting5A for elastically supporting the column1with respect to the sample chamber3.
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Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Wells Nikita
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