Electric field emission cold cathode

Details Electric field emission cold cathode Electric field emission cold cathode

1997-08-18

2000-07-04

Patel, Ashok

Electric lamp and discharge devices

Electrode and shield structures

Point source cathodes

313351, 313309, 313495, 257 11, H01J 130

Patent

active

060843411

ABSTRACT:
An electric field emission cold cathode which is free of short-circuited damage upon discharge is provided by forming a highly voltage-withstandable control mechanism, which is capable of limiting generation of current upon discharge, with a simple structure and through simple fabrication processes. The electric field emission cold cathode includes a sharp-pointed emitter, a gate electrode having an aperture surrounding the emitter, and a cathode electrode connected to the emitter. The electric field emission cold cathode further includes an n-type diffused layer connected to the emitter and the cathode electrode, and a p-type silicon substrate electrically connected to the cathode electrode at least at a side thereof facing the emitter. A pinch-off resistor is provided between the emitter and the cathode electrode. The pinch-off resistor has a saturation current value smaller than a short-circuit breakdown current of the emitter.

REFERENCES:
patent: 4513308 (1985-04-01), Greene et al.
patent: 4990766 (1991-02-01), Simms et al.
patent: 5162704 (1992-11-01), Kobori et al.
patent: 5359256 (1994-10-01), Gray
patent: 5550435 (1996-08-01), Kuriyama et al.

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