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:
Sep. 24, 1996
Filed:
Nov. 24, 1993
Applicant:
Inventors:
Christopher J Spindt, Menlo Park, CA (US);
John M Macaulay, Palo Alto, CA (US);
Assignee:
Silicon Video Corporation, San Jose, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313310 ; 313311 ; 313336 ; 313351 ; 313355 ;
Abstract
A gated electron-emitting device contains a multiplicity of electron-emissive elements, each formed with a pedestal (98) and an overlying cone (94.sub.1). In each electron-emissive element, the base diameter of the cone is greater than the element, the base diameter of the cone is greater than the diameter of the pedestal. With the pedestal being electrically conductive, the cone may be electrically resistive. Alternatively, each electron-emissive element can be an elongated element (30B) that reaches a maximum diameter at a point between, and spaced apart from, both ends of the element.