Field emission electron source

Details Field emission electron source Field emission electron source

1997-06-27

2000-05-02

Patel, Ashok

Electric lamp and discharge devices

Discharge devices having a thermionic or emissive cathode

309336, 309351, 309497, 428367, 428366, 428398, H01J 130

Patent

active

060576375

ABSTRACT:
A novel field emitter material, field emission electron source, and commercially feasible fabrication method is described. The inventive field emission electron source produces reliable electron currents of up to 400 mA/cm.sup.2 at 200 volts. The emitter is robust and the current it produces is not sensitive to variability of vacuum or the distance between the emitter tip and the cathode. The novel emitter has a sharp turn-on near 100 volts.

REFERENCES:
patent: 5697827 (1997-12-01), Rabinowitz
patent: 5726524 (1998-03-01), Debe
patent: 5764004 (1998-06-01), Rabinowitz
A.G. Rinzler, et al., Science 269, 1550-1553, Dec. 1995.
W.A. de Heer, et al., Science 270, 1179-1180, Dec. 1995.
N.G. Chopra, Science, 269:966, Dec. 1995.
T. Studt, "Innovation Spurs/Hardware Technologies," R & D Magazine, Apr. 1996, pp. 14-17.

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