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CPC
H01J2237/31733
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H
ELECTRICITY
H01
Electric elements
H01J
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J2237/00
Discharge tubes exposing object to beam
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H01J2237/31733
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Patent Grant
Method and apparatus for low-energy scanning electron beam lithography
Patent number
4,785,189
Issue date
Nov 15, 1988
International Business Machines Corporation
Oliver C. Wells
B82 - NANO-TECHNOLOGY