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:
Dec. 16, 2003
Filed:
Jun. 15, 2000
Applicant:
Inventors:
Zvi Yaniv, Austin, TX (US);
Richard Lee Fink, Austin, TX (US);
Zhidan Li Tolt, San Jose, CA (US);
Leif Thuesen, Round Rock, TX (US);
Assignee:
SI Diamond Technology, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 1/13 ; H01J 1/30 ; H01J 1/304 ; H01J 1/906 ;
U.S. Cl.
CPC ...
H01J 1/13 ; H01J 1/30 ; H01J 1/304 ; H01J 1/906 ;
Abstract
A carbon film having an area of insulating material surrounded by an area of conducing material, and an area of material between the area of insulating material and the area of conducting material having a graded dielectric constant which varies from high to low from the area of insulating material to the area of conducting material. An emission site on the carbon film will emit electrons as a function of time, and as a function of distance across an emission site area.