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.

Date of Patent:
Aug. 22, 2017

Filed:

Dec. 03, 2014
Applicant:

Hitachi High-technologies Corporation, Minato-ku, Tokyo, JP;

Inventors:

Yusuke Ominami, Tokyo, JP;

Kenji Nakahira, Tokyo, JP;

Maki Tanaka, Tokyo, JP;

Shinsuke Kawanishi, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01K 1/08 (2006.01); H01J 37/22 (2006.01); H01J 37/28 (2006.01); H01J 37/18 (2006.01); H01J 37/20 (2006.01);
U.S. Cl.
CPC ...
H01J 37/222 (2013.01); H01J 37/185 (2013.01); H01J 37/20 (2013.01); H01J 37/28 (2013.01); H01J 2237/164 (2013.01); H01J 2237/221 (2013.01); H01J 2237/2608 (2013.01); H01J 2237/2806 (2013.01);
Abstract

A charged-particle-beam device is provided with a data processing unit that removes, from a detector signal, the effect that scattering of a primary charged-particle beam before the primary charged-particle beam reaches a specimen has on the spot shape of the primary charged-particle beam. For example, when using an electron microscope to observe a specimen in a non-vacuum atmosphere, the effect that scattering of a primary charged-particle beam due to a barrier film or a gas present in a non-vacuum space has on the spot shape of the primary charged-particle beam is removed from a signal acquired by a detector. This makes it easy to obtain high-quality images.


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