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.

Date of Patent:
Nov. 17, 1998

Filed:

Dec. 06, 1996
Applicant:
Inventors:

Jules D Levine, Dallas, TX (US);

Kenneth G Vickers, Whitesboro, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
445 24 ; 445 50 ;
Abstract

A method of fabricating electron emission structures 28 having enhanced emission characteristics. The method comprises the steps of providing a substrate 10 having electron emission structures 5 thereon and having a layer 5' over the electron emission structures. The layer 5' having apertures 30 in alignment with said electron emission structures 5. Then modifying the electron emission structures 5 through the apertures 30 with a directional ion milling beam; thereby creating modified electron emission structures 17,29 with enhanced emission efficiency.


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