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. 16, 2015
Filed:
Feb. 20, 2013
Applicant:
Georgia Tech Research Corporation, Atlanta, GA (US);
Inventors:
Graham Sanborn, Atlanta, GA (US);
William Judson Ready, Atlanta, GA (US);
Assignee:
Georgia Tech Research Corporation, Atlanta, GA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/06 (2006.01); H01J 1/304 (2006.01); H01J 9/02 (2006.01); H01J 3/02 (2006.01); B82Y 99/00 (2011.01); B82Y 10/00 (2011.01);
U.S. Cl.
CPC ...
H01J 1/3042 (2013.01); H01J 9/025 (2013.01); B82Y 99/00 (2013.01); H01J 1/304 (2013.01); H01J 3/021 (2013.01); H01J 2201/30469 (2013.01); B82Y 10/00 (2013.01);
Abstract
Devices and methods are described for a cathode having a plurality of apertures in an insulating layer, pits in a substrate layer, and emitters in the pit. The device can also have gate layer on top of the insulating layer which has an opening that is substantially aligned with the pit and the aperture. The emitter can be an array of substantially aligned carbon nanotubes. The device and method produces cathodes that are designed to avoid shorting of the cathode due to emitter-gate contact and other fabrication challenges.