Field-emission cold cathode having improved insulating character

Details Field-emission cold cathode having improved insulating character Field-emission cold cathode having improved insulating character

1996-03-19

2000-06-13

Patel, Nimeshkumar D.

Electric lamp and discharge devices

Electrode and shield structures

Point source cathodes

313309, 313351, 313495, H01J 102, H01J 116, H01J 1910, H01J 6304

Patent

active

060753153

ABSTRACT:
Piled-up films composed of different materials or composed of the same material manufactured by different methods or different conditions are used as an insulating layer for a field-emission cold cathode. The insulating layer may have a composition which is varied continuously in the thickness direction. A cross-section of the insulating layer may be made uneven. Preferably, a triple junction in which a substrate, the insulating layer, and a vacuum are in contact with one another, is disposed at a position which can not be seen from outside the device.

REFERENCES:
patent: 5070282 (1991-12-01), Epsztein
patent: 5319279 (1994-06-01), Watanabe et al.
patent: 5394006 (1995-02-01), Liu
patent: 5534743 (1996-07-01), Jones et al.
C.A. Spindt, "A Thin-Film Field-Emission Cathode"; Journal of Applied Physics 39, pp. 3504-3505.
H.C. Miller, "Surface Flashover of Insulators"; IEEE Transactions on Electrical Insulation, vol. 24, No. 5, Oct. 1989, pp. 765-786.

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