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:
Sep. 29, 2026
Filed:
Sep. 29, 2023
Fei Company, Hillsboro, OR (US);
FEI Company, Hillsboro, OR (US);
Abstract
Aberration correction systems and charged particle microscope systems including the same. An apparatus can include a charged particle source and an optical column. The optical column can include a multipole condenser with one or more condenser quadrupole-generating elements and/or a multipole objective with a plurality of objective multipole elements. The plurality of objective multipole elements can include at least three quadrupole-generating elements and at least three octupole-generating elements configured to at least partially correct a spherical aberration of a charged particle beam. The optical column can be configured such that the charged particle beam enters the multipole objective with a non-circular beam profile and/or such that the charged particle beam is characterized by a non-circular beam profile through at least a portion of the multipole objective.