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:
Aug. 23, 2005
Filed:
Oct. 15, 2003
Zhizhang Chen, Corvallis, OR (US);
Paul J. Benning, Corvallis, OR (US);
Sriram Ramamoorthi, Corvallis, OR (US);
Thomas Novet, Corvallis, OR (US);
Zhizhang Chen, Corvallis, OR (US);
Paul J. Benning, Corvallis, OR (US);
Sriram Ramamoorthi, Corvallis, OR (US);
Thomas Novet, Corvallis, OR (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
An emitter includes an electron supply and a tunneling layer disposed on the electron supply. A cathode layer is disposed on the tunneling layer. A conductive electrode has multiple layers of conductive material. The multiple layers include a protective layer disposed on the cathode layer. The conductive electrode has been etched to define an opening thereby exposing a portion of the cathode layer.