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:
Jun. 24, 2014
Filed:
Apr. 25, 2011
Kenichiro Mori, Utsunomiya, JP;
Kenichiro Mori, Utsunomiya, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A lithographic apparatus includes: a light-shielding plate which includes, on an edge thereof, an arc overlapping with a circular boundary line that defines a region onto which the pattern is transferred and is located inside an outer periphery of a substrate, and blocks the light to prevent the light from being incident on an outer peripheral region located outside the circular boundary line; a first driving unit which rotates the light-shielding plate about an axis parallel to an optical axis of the irradiation system; and a second driving unit which linearly drives the light-shielding plate within a plane perpendicular to the optical axis.