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:
Nov. 19, 2024

Filed:

Jun. 02, 2022
Applicant:

Jeol Ltd., Tokyo, JP;

Inventor:

Takeshi Otsuka, Tokyo, JP;

Assignee:

JEOL Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 37/22 (2006.01); H01J 37/244 (2006.01); H01J 37/28 (2006.01);
U.S. Cl.
CPC ...
H01J 37/222 (2013.01); H01J 37/244 (2013.01); H01J 37/28 (2013.01); H01J 2237/226 (2013.01); H01J 2237/2448 (2013.01); H01J 2237/24578 (2013.01); H01J 2237/2806 (2013.01); H01J 2237/2814 (2013.01);
Abstract

A charged particle beam apparatus acquires a scanned image by scanning a specimen with a charged particle beam, and detecting charged particles emitted from the specimen. The apparatus includes a charged particle beam source that emits the charged particle beam; an irradiation optical system that scans the specimen with the charged particle beam; a plurality of detection units that detects the charged particles emitted from the specimen; and an image processing unit that reconstructs a profile of a specimen surface of the specimen, based on a plurality of detection signals outputted from the plurality of detection units. The image processing unit: determines an inclination angle of the specimen surface, based on the plurality of detection signals; processing to determine a height of the specimen surface, based on the scanned image; and reconstructs the profile of the specimen surface, based on the inclination angle and the height.


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