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. 29, 2001
Filed:
Sep. 17, 1998
Kazuo Konuma, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
There is provided a field emitter capable of efficiently maintaining the temperature of an emission point at a constant temperature. Electrons are supplied to the emission point for emitting electrons, through both two routes which are composed of a first cathode in contact with a first cathode base conductor, and a second cathode, respectively. The first cathode and the second cathode are contacted at the emission point. The first cathode and the second cathode are insulated from each other by using a conical insulator layer. A gate metal film is provided for applying a strong electric field to the emission point. A gate metal film, the second cathode and the first cathode base conductor are connected to a gate applying wiring conductor, a second cathode wiring conductor and a first cathode wiring conductor, respectively.