Structures and processes for fabricating field emission cathode

Details Structures and processes for fabricating field emission cathode Structures and processes for fabricating field emission cathode

1992-12-23

1994-08-02

Yusko, Donald J.

Electric lamp and discharge devices

Electrode and shield structures

Point source cathodes

313309, 313351, H01J 116

Patent

active

053349083

ABSTRACT:
The present invention relates generally to new structures for a field emission cathode and processes for fabricating the same. The field emission is made of any material that is capable of emitting electrons under the influence of an electrical potential. The field emission cathode has several unique three dimensional structures. The basic structure comprises of a layer of material with cathode tips. For a more complex structure the cathode tip is preferably accurately aligned inside an extraction/control electrode structure, in preferably a vacuum environment. The structures of this invention can be fabricated to be connected to other similar field emission cathodes or to other electronic devices.

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