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:
Sep. 04, 2012
Filed:
Jan. 14, 2010
Applicants:
Kotoko Hirose, Matsudo, JP;
Takeshi Kawasaki, Musashino, JP;
Tomonori Nakano, Kodaira, JP;
Inventors:
Assignee:
Hitachi High-Technologies Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 37/28 (2006.01); H01J 37/304 (2006.01); G01N 23/225 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is provided a charged particle radiation device provided with an aberration corrector capable of correcting aberration with high precision in a short time by automatically setting an aberration coefficient measuring condition to thereby realize measurement with high precision. The charged particle radiation device has a feature that a value of defocus and a value of astigma, occurring owing to aberration at the time of the beam tilting, are estimated on the basis of results of aberration measurement, thereby adjusting an electron optical system on the basis of these values.