Photocopying – Projection printing and copying cameras – Illumination systems or details
Reexamination Certificate
2006-12-21
2010-11-16
Nguyen, Hung Henry (Department: 2882)
Photocopying
Projection printing and copying cameras
Illumination systems or details
C355S053000
Reexamination Certificate
active
07834980
ABSTRACT:
A method of lithography is disclosed that includes conditioning a radiation beam using an illumination system of a lithographic apparatus, imparting the radiation beam with a pattern in its cross-section, and projecting the patterned beam of radiation as an exposure field onto a substrate, wherein a periodic interference pattern is present in the exposure field, and relative motion is established between the substrate and a component in the illumination system, such that the periodic interference pattern is displaced in a direction which is not parallel to a direction of repetition of the periodic interference pattern.
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patent: 6331885 (2001-12-01), Nishi
Baselmans Johannes Jacobus Matheus
Tychkov Andrey S.
ASML Netherlands B. V.
Kreutzer Colin
Nguyen Hung Henry
Pillsbury Winthrop Shaw & Pittman LLP
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