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:
Mar. 30, 2010
Filed:
Apr. 20, 2007
Shinichi Okita, Nishitokyo, JP;
Shinichi Okita, Nishitokyo, JP;
Nikon Corporation, Tokyo, JP;
Abstract
In the inspection of one reticle of reticles used for double exposure, the pattern area of the reticle is divided into a plurality of areas, according to (a) whether an area is a light-transmitting section or a light-shielding section, (b) whether a pattern area of the other reticle is a light-transmitting section, a light-shielding section, or a proximity section to a pattern, and the like, and inspection conditions are changed with respect to each area so that abnormality that is directly related to the yield can be detected. Thus, the defect inspection of the reticles that is directly related to the yield of device production can be performed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile