The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 18, 2006
Filed:
Mar. 31, 2004
Scott D. Coston, New Milford, CT (US);
Richard J. Guerra, Trumbull, CT (US);
Scott D. Coston, New Milford, CT (US);
Richard J. Guerra, Trumbull, CT (US);
ASML Holding N.V., Veldhoven, NL;
Abstract
A method and system allow for changing (continuously or variably) both a field height and pupil of a beam that illuminates an object field. In one example, the object field can have a pattern generator (e.g., one or more reticles, spatial light modulators, or the like) positioned therein. The system and method for changing both the field height and the pupil can include a field defining element, a pupil defining element, and first and second zoom systems. The field defining element (FDE) can generate a field height of an illumination beam. The first zoom system can allow for changing of the field height of the illumination beam. The pupil defining element (PDE) can generate a pupil of the illumination beam. The second zoom system can allow for changing of the pupil of the illumination beam.