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:
May. 24, 2022
Filed:
Mar. 15, 2021
Applicant:
Electronics and Telecommunications Research Institute, Daejeon, KR;
Inventors:
Assignee:
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 29/62 (2006.01); H01J 29/48 (2006.01); H01J 29/04 (2006.01); H01J 1/30 (2006.01); H01J 1/304 (2006.01);
U.S. Cl.
CPC ...
H01J 29/62 (2013.01); H01J 1/30 (2013.01); H01J 1/304 (2013.01); H01J 29/04 (2013.01); H01J 29/481 (2013.01);
Abstract
Provided is a field emission device including a cathode electrode and an anode electrode, which are spaced apart from each other, an emitter disposed on the cathode electrode, a gate electrode disposed between the cathode electrode and the anode electrode and including a gate opening that overlaps the emitter, and a plurality of alignment electrodes disposed between the gate electrode and the cathode electrode. Here, the alignment electrodes surround a side surface of the emitter.