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. 18, 2025

Filed:

Jun. 03, 2022
Applicant:

Jeol Ltd., Tokyo, JP;

Inventors:

Munehiro Kozuka, Tokyo, JP;

Tsutomu Negishi, Tokyo, JP;

Tatsuhito Kimura, Tokyo, JP;

Yoshikazu Ishikawa, Tokyo, JP;

Hisashi Kawahara, Tokyo, JP;

Assignee:

JEOL Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 37/22 (2006.01); H01J 37/08 (2006.01); H01J 37/09 (2006.01); H01J 37/20 (2006.01); H01J 37/244 (2006.01); H01J 37/305 (2006.01); H01L 21/66 (2006.01);
U.S. Cl.
CPC ...
H01J 37/222 (2013.01); H01J 37/08 (2013.01); H01J 37/09 (2013.01); H01J 37/20 (2013.01); H01J 37/226 (2013.01); H01J 37/244 (2013.01); H01J 37/305 (2013.01); H01L 22/26 (2013.01); H01J 2237/20207 (2013.01); H01J 2237/24578 (2013.01); H01J 2237/31745 (2013.01);
Abstract

A specimen machining device for machining a specimen by irradiating the specimen with an ion beam includes an ion source for irradiating the specimen with the ion beam, a shielding member disposed on the specimen to block the ion beam, a specimen stage for holding the specimen, a camera for photographing the specimen, a coaxial illumination device for irradiating the specimen with illumination light along an optical axis of the camera, and a processing unit for determining whether to terminate the machining based on an image photographed by the camera. The processing unit performs processing for acquiring information indicating a target machined width, processing for acquiring the image, processing for measuring a machined width on the acquired image, and processing for terminating the machining when the measured machined width equals or exceeds the target machined width.


Find Patent Forward Citations

Loading…