Patent ID: 6956333
Filing Date: 2005-10-18
Classification: B82Y,H01J,H01L

Abstract:
1. An electron emitting device for emitting electrons at addressable locations, the device comprising parallel spaced-apart first conductors intersecting with parallel spaced-apart second conductors, the intersecting first and second conductors defining addressable locations where electrons are emitted in response to an application of an energizing voltage, one face of the first conductors being covered, at least at the intersections of the first and second conductors, with an insulating layer against which the second conductors are applied, said insulating layer forming a tunnel barrier for hot electrons that travel ballistically through and are emitted from the second conductors in response to the application of said energizing voltage, and wherein the first conductors are parallel p-doped lines in a silicon wafer, the insulating layer is formed of parallel thin oxide strips on the silicon wafer intersecting with said p-doped lines, and the second conductors are parallel metal strips applied over the thin oxide strips.