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. 02, 1997
Filed:
Dec. 04, 1995
Applicant:
Inventors:
Assignee:
Industrial Technology Research Institute, Hsin-Chu, TW;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
216 11 ; 216 39 ; 216 49 ; 216 88 ; 313310 ; 445 24 ; 445 50 ; 445 51 ;
Abstract
A cold cathode emitter structure is described together with two methods for manufacturing it. These methods are cost effective and relatively simple to implement. A key feature is the incorporation of chemical-mechanical polishing into the process. This allows the micro-cones, that serve as cold cathodes, to be easily positioned so that their apexes are located at the correct height relative to the gate lines. A second important feature is that the openings in the gate lines through which the emitted electrons will pass are made to be significantly narrower than in conventional designs.