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. 14, 2023

Filed:

Jan. 25, 2023
Applicant:

Fei Company, Hillsboro, OR (US);

Inventors:

Maarten Bischoff, Uden, NL;

Peter Christiaan Tiemeijer, Eindhoven, NL;

Tjerk Gerrit Spanjer, Eindhoven, NL;

Stan Johan Pieter Konings, Breda, NL;

Assignee:

FEI Company, Hillsboro, OR (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 37/153 (2006.01); H01J 37/147 (2006.01); H01J 37/20 (2006.01); H01J 37/22 (2006.01); H01J 37/28 (2006.01);
U.S. Cl.
CPC ...
H01J 37/153 (2013.01); H01J 37/1478 (2013.01); H01J 37/20 (2013.01); H01J 37/222 (2013.01); H01J 37/28 (2013.01); H01J 2237/1516 (2013.01); H01J 2237/1534 (2013.01); H01J 2237/202 (2013.01); H01J 2237/221 (2013.01); H01J 2237/2802 (2013.01);
Abstract

A method for electron microscopy comprises: adjusting at least one of an electron beam and an image beam in such a way that off-axial aberrations inflicted on at least one of the electron beam and the image beam are minimized, the adjusting performed by using a beam adjusting component to obtain at least one modified image beam, wherein the adjusting comprises applying both shifting and tilting to at least one of the electron beam and the image beam and wherein the amount of tilting of at least one of the electron beam and the image beam depends on the amount of shifting of at least one of the electron beam and the image beam respectively and wherein the amount of tilting is computed based on at least one of coma and astigmatism introduced as a consequence of the shift.


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