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:
Apr. 07, 2026
Filed:
Mar. 14, 2023
Jeol Ltd., Tokyo, JP;
Kenichi Tsutsumi, Tokyo, JP;
Tatsuya Uchida, Tokyo, JP;
Kazushiro Yokouchi, Tokyo, JP;
Nobuyuki Ikeo, Tokyo, JP;
Konomi Ikita, Tokyo, JP;
JEOL Ltd., Tokyo, JP;
Abstract
A charged particle beam apparatus that forms a probe with a charged particle beam and scans a specimen with the probe to acquire a scanning image. The charged particle beam apparatus includes an optical system for scanning the specimen with the probe; a detector that detects a signal generated from the specimen through the scanning of the specimen with the probe; and a control unit that controls the optical system. The control unit performs correction processing of acquiring a reference image obtained by the scanning of the specimen with the probe, comparing the reference image to a criterion image to determine a drift amount, and correcting a displacement of an irradiation position with the probe on the specimen based on the drift amount; and processing of setting a frequency with which the correction processing is to be performed based on the drift amount.