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:
Jul. 02, 2019

Filed:

Aug. 31, 2017
Applicant:

Hitachi, Ltd., Chiyoda-ku, Tokyo, JP;

Inventors:

Ryoko Araki, Tokyo, JP;

Hyejin Kim, Tokyo, JP;

Daisuke Bizen, Tokyo, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 23/00 (2006.01); G02B 21/00 (2006.01); G01B 9/04 (2006.01); H01J 37/26 (2006.01); H01J 37/28 (2006.01);
U.S. Cl.
CPC ...
G02B 21/008 (2013.01); G01B 9/04 (2013.01); G02B 21/0016 (2013.01); G02B 21/0032 (2013.01); G02B 21/0036 (2013.01); G02B 21/0052 (2013.01); H01J 37/263 (2013.01); H01J 37/265 (2013.01); H01J 37/28 (2013.01); H01J 2237/022 (2013.01); H01J 2237/244 (2013.01); H01J 2237/2485 (2013.01);
Abstract

A scanning microscope includes: a charged particle beam source configured to output a charged particle beam to be emitted to a sample; a detector configured to detect charged particles from the sample; and a controller configured to control the charged particle beam source and the detector, wherein the controller changes one or more variable parameters to determine a plurality of different parameter value sets, acquires a measurement result of a temporal change of absorption current in a target sample material under each of the plurality of different parameter value sets, and, based on the measurement results, selects a parameter value set for use in measurement of the target sample from the plurality of different parameter value sets.


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