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:
Jun. 02, 2015
Filed:
Sep. 16, 2011
Applicants:
Marc Monthioux, Aussonne, FR;
Florent Houdellier, Calmont, FR;
Inventors:
Marc Monthioux, Aussonne, FR;
Florent Houdellier, Calmont, FR;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H01J 29/48 (2006.01); H01J 1/304 (2006.01); H01J 3/02 (2006.01); H01J 37/073 (2006.01); H01J 37/28 (2006.01); H01J 9/02 (2006.01); B82Y 20/00 (2011.01);
U.S. Cl.
CPC ...
H01J 29/485 (2013.01); H01J 1/3044 (2013.01); H01J 3/022 (2013.01); H01J 37/073 (2013.01); H01J 37/28 (2013.01); H01J 2201/30411 (2013.01); H01J 2201/30415 (2013.01); H01J 2201/30426 (2013.01); H01J 2201/30434 (2013.01); H01J 2201/30469 (2013.01); H01J 2237/06316 (2013.01); H01J 2237/06341 (2013.01); H01J 2237/26 (2013.01); B82Y 20/00 (2013.01); H01J 9/025 (2013.01);
Abstract
A field-emission electron gun including an electron emission tip, an extractor anode, and a mechanism creating an electric-potential difference between the emission tip and the extractor anode. The emission tip includes a metal tip and an end cone produced by chemical vapor deposition on a nanofilament, the cone being aligned and welded onto the metal tip. The electron gun can be used for a transmission electron microscope.