Electron emitters and method for forming them

Active solid-state devices (e.g. – transistors – solid-state diode – Thin active physical layer which is – Low workfunction layer for electron emission

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445 24, 445 50, H01J 904

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active

060490896

ABSTRACT:
Electron emitters and a method of fabricating emitters which have a concentration gradient of impurities, such that the highest concentration of impurities is at the apex of the emitters, and decreases toward the base of the emitters. The method comprises the steps of doping, patterning, etching, and oxidizing the substrate, thereby forming the emitters having impurity gradients.

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