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. 01, 2016
Filed:
Aug. 31, 2011
Katsumi Setoguchi, Hitachinaka, JP;
Osamu Komuro, Hitachinaka, JP;
Katsumi Setoguchi, Hitachinaka, JP;
Osamu Komuro, Hitachinaka, JP;
HITACHI HIGH-TECHNOLOGIES CORPORATION, Tokyo, JP;
Abstract
In an image forming apparatus and a computer program, extraction of information about distortion in a charged particle beam scan area can be implemented. An image forming apparatus integrates image data obtained by a charged particle beam apparatus and calculates, from a plurality of images with different scan directions of the charged particle beam apparatus, first information about the amount of change in a feature quantity in accordance with the time of irradiation of the charged particle beam, second information about the amount of change in the feature quantity before and after a change in beam scan direction, and/or third information about a position error of a pattern on the image before and after the change in beam scan direction.