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. 23, 2006
Filed:
Oct. 15, 2003
Applicants:
Zhizhang Chen, Corvallis, OR (US);
Paul J. Benning, Corvallis, OR (US);
Sriram Ramamoorthi, Corvallis, OR (US);
Thomas Novet, Corvallis, OR (US);
Inventors:
Zhizhang Chen, Corvallis, OR (US);
Paul J. Benning, Corvallis, OR (US);
Sriram Ramamoorthi, Corvallis, OR (US);
Thomas Novet, Corvallis, OR (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method is disclosed for creating an emitter having a flat cathode emission surface: First a protective layer that is conductive is formed on the flat cathode emission surface. Then an electronic lens structure is created over the protective layer. Finally, the protective layer is etched to expose the flat cathode emission surface.