Method of manufacturing a cold cathode, field emission...

Details Method of manufacturing a cold cathode, field emission... Method of manufacturing a cold cathode, field emission...

H - Electricity

01

J

313/187, 316/47

H01J 9/02 (2006.01) H01J 1/30 (2006.01) H01J 1/304 (2006.01)

Patent

CA 1305999

ABSTRACT OF THE DISCLOSURE A method is provided for manufacturing a cold cathode field emission device. The method comprises the steps of: providing a layer of anodised alumina having a plurality of elongate pores which are substantially orthogonal to major surfaces of the layer; filling said pores completely with an electron emissive material, and then removing at least a part of said layer to form a defined surface of said layer and to produce a plurality of electron emissive spikes extruding from and at an angle to said defined surface wherein a plurality of electron emissive structures are produced, each structure comprising a plurality of electron emissive spikes inclined to one another.

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