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:
Jul. 23, 2013
Filed:
Apr. 06, 2012
Maximus Theodorus Otten, Best, NL;
Gerrit Cornelis Van Hoften, Veldhoven, NL;
Joeri Lof, Eindhoven, NL;
Maximus Theodorus Otten, Best, NL;
Gerrit Cornelis Van Hoften, Veldhoven, NL;
Joeri Lof, Eindhoven, NL;
FEI Company, Hillsboro, OR (US);
Abstract
The invention relates to a Method of protecting a direct electron detector () in a TEM. The invention involves predicting the current density on the detector before setting new beam parameters, such as changes to the excitation of condenser lenses (), projector lenses () and/or beam energy. The prediction is made using an optical model or a Look-Up-Table. When the predicted exposure of the detector is less than a predetermined value, the desired changes are made, otherwise a warning message is generated and changes to the settings are postponed.