Field emission cathode and cleaning method therefor

Details Field emission cathode and cleaning method therefor Field emission cathode and cleaning method therefor

1997-03-28

1999-10-19

Day, Michael

Electric lamp and discharge devices

Discharge devices having a multipointed or serrated edge...

313336, 313495, H01J 130, H01J 1922

Patent

active

059694670

ABSTRACT:
A field emission cathode includes a first electron-emitting structure having a first cathode electrode (3), a first gate electrode (5), a first insulating layer (4) separating the first cathode electrode (3) from the first gate electrode (5), and at least one first emitter tip (9) disposed in a hole formed in the first gate electrode (5) and the first insulating layer (4) to expose a portion of the first cathode electrode (3); and a second electron-emitting structure surrounding and insulated from the first electron-emitting structure wherein the second electron-emitting structure has a second cathode electrode (6), a second gate electrode (8), a second insulating layer (7) separating the second cathode electrode (6) from the second gate electrode (8), and at least one second emitter tip (10) disposed in a hole formed in the second gate electrode (8) and the second insulating layer (7) to expose a portion of the second cathode electrode (6).

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C. Spindt, "A Thin-Film Field-Emission Cathode", Journal of Applied Physics, vol. 39, No. 7, 1968, p. 3504 (Jun.).
W. Dawson Kesling et al., "Beam Focusing for Field-Emission Flat-Panel Displays", IEEE Transactions on Electron Devices, vol. 42, No. 2, Feb. 1995, pp. 340-347.
C.A. Spindt et al., "Physical properties of thin-film field emission cathodes with molybdenum cones", Journal of Applied Physics, vol. 47, No. 12, Dec. 1976, pp. 5248-5263.

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