Radiant energy – Inspection of solids or liquids by charged particles
Reexamination Certificate
2011-01-04
2011-01-04
Berman, Jack I (Department: 2881)
Radiant energy
Inspection of solids or liquids by charged particles
C250S307000, C250S310000, C250S492200, C250S492300
Reexamination Certificate
active
07863563
ABSTRACT:
Embodiments of the present invention provide an apparatus employing an electron beam to expose the structure of a micro device and produce an image of the structure. The apparatus includes an electron gun producing the electron beam; an electron beam column having one or more segments that shape, focus and/or deflect the electron beams; and one or more center tubes along the electron beam column that provides a high vacuum environment for and guiding the electron beam to a target object coated with an electron sensitive resist. At least one of the center tubes is a carbon tube made of solid carbon material.
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Properties and Characteristics of Graphite for Industrial Applications. Sheppard et al. 1987. 50 pages.
Dhaliwal Rajinder S.
Moore Lonn E.
Sturans Maris A.
Berman Jack I
Cai Yuanmin
International Business Machines - Corporation
Purinton Brooke
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