Planar type cold cathode with sharp tip ends and manufacturing m

Details Planar type cold cathode with sharp tip ends and manufacturing m Planar type cold cathode with sharp tip ends and manufacturing m

1991-03-01

1992-09-15

Yusko, Donald J.

Electric lamp and discharge devices

Discharge devices having a multipointed or serrated edge...

313336, 313351, H01J 102, H01J 130

Patent

active

051480794

ABSTRACT:
A planar type cold cathode for generating electron field emission which has a planar cold cathode having triangular convex portions and an anode confronting the triangular convex portions wherein each convex portion has a sharp tip end having a radius of curvature of 0.1 .mu.m or less. Also, a manufacturing method therefor is disclosed. In this method, sharp tip ends of the cold cathode are formed by using a normal etching technique.

REFERENCES:
patent: 4827177 (1989-05-01), Lee et al.
patent: 4904895 (1990-02-01), Tsukamoto et al.
"Physical Properties of Thin-Film Field Emission Cathodes with Molybdenum Cones" by G. A. Spindt, et al., Journal of Applied Physics, vol. 47, No. 12, Jul., 1976.

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