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:
Jun. 18, 1996
Filed:
Jan. 31, 1994
Applicant:
Inventors:
Christopher J Spindt, Menlo Park, CA (US);
Patrick A Corcoran, Oakland, CA (US);
Assignee:
Silicon Video Corporation, San Jose, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313497 ; 313309 ; 313310 ; 313336 ; 313351 ; 313422 ; 313496 ;
Abstract
A gated field-emission structure contains a emitter electrode (46), an overlying electrically insulating layer (48, and one or more electron-emissive elements (52) situated in one or more apertures extending through the insulating layer. A patterned gate electrode (50) through which each electron-emissive element is exposed overlies the insulating layer. Focusing ridges (54) are situated on the insulating layer on opposite sides of the gate electrode. The focusing ridges, which normally extend to a considerably greater height than the gate electrode, cause emitted electrons to converge into a narrow band.