Low work function emitters and method for production of FED's

Details Low work function emitters and method for production of FED's Low work function emitters and method for production of FED's

2000-01-21

2009-02-17

Patel, Ashok (Department: 2889)

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

C313S309000, C313S310000, C313S336000, C313S351000

Reexamination Certificate

active

07492086

ABSTRACT:
According to one aspect of the invention, a field emission display is provided comprising: an anode; a phosphor screen located on the anode; a cathode; an evacuated space between the anode and the cathode; an emitter located on the cathode opposite the phosphor; wherein the emitter comprises an electropositive element both in a body of the emitter and on a surface of the emitter. According to another aspect of the invention, a process for manufacturing a FED is provided comprising the steps of forming an emitter comprising an electropositive element in the body of the tip; positioning the emitter in opposing relation to a phosphor display screen; creating an evacuated space between the emitter tip and the phosphor display screen; and causing the electropositive element to migrate to an emission surface of the emitter.

REFERENCES:
patent: 4325000 (1982-04-01), Wolfe et al.
patent: 4940916 (1990-07-01), Borel et al.
patent: 5089292 (1992-02-01), MaCaulay et al.
patent: 5186670 (1993-02-01), Doan et al.
patent: 5210472 (1993-05-01), Casper et al.
patent: 5229331 (1993-07-01), Doan et al.
patent: 5302238 (1994-04-01), Roe et al.
patent: 5358908 (1994-10-01), Reinberg et al.
patent: 5391259 (1995-02-01), Cathey et al.
patent: 5469014 (1995-11-01), Itoh et al.
patent: 5532177 (1996-07-01), Cathey
patent: 5772488 (1998-06-01), Cathey et al.
patent: 6057638 (2000-05-01), Cathey et al.
patent: 6515414 (2003-02-01), Cathey et al.
patent: 6825596 (2004-11-01), Cathey
patent: 7064476 (2006-06-01), Cathey
patent: 1-235124 (1989-09-01), None
Macaulay, Cesiation of Field Emission Microcathode Arrays, Sixth International Vacuum Microelectronics Conference, IEEE, Electron Devices Society, Technical Digest, Jul. 12-15, 1993, p. 166.
Bauch et al. Apr. 1989 “Effect of Cs Contamination on the Interface State Density of Mnos Capacitors,” Applied Surface Science 39:356-363.
Branston et al. Oct. 1991 “Field Emission from Metal-Coated Silicon Tips,” IEEE Transaction on Electron Devises, vol. 38, No. 10, pp. 2329-2333.
Ea et al. Jul. 1990 “Avalanche Electron Emission Cathode Array,” Vacumme Microelectronics Conference.
Evtukh et al. Jul. 30, 1995, “Parameters of the Tip Arrays Covered by Low Work Function Layers,” Institute of Semiconductor Physics Academy of Sciences, Prospect Nauki 45, Kiev-252028, Ukraine (Aug. 1995).
Evtukh, et al. “Parameters of the Tip Arrays Covered by Low Work Function Layers,” J. Vac. Sci Tech. B 14 (3), pp. 2130-2134, (Pub. May-Jun. 1996).
Macaulay et al. Aug. 24, 1992 “Ceslated thin-film field-emission microcathode arrays,” Appl. Phys. Lett., vol. 61, No. 8, pp. 997-999.
Michaelson H.B Jan. 1978 “Relation Between an Atomic Electronegativity Scale and the Work Function,” IBM J. Res. Develop, vol. 22, No. 1, pp. 72-80.

Affiliated with

Also associated with

Rating

Low work function emitters and method for production of FED's does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low work function emitters and method for production of FED's, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low work function emitters and method for production of FED's will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4056330