Patent ID: 6590322
Filing Date: 2003-07-08
Classification: B82Y,H01J

Abstract:
A field emitter cell comprising:an electrically conductive substrate layer; an insulating layer directly upon said electrically conductive substrate layer, said insulating layer having a first perforation therethrough, said first perforation having an aperture, at least one essentially vertical sidewall and a bottom surface defined by said electrically conductive substrate layer; an electrically conductive multilayer gate directly upon said insultaing layer, said electrically conductive multilayer gate having a second perforation therein, said second perforation having an aperture larger than the aperture of said underlying first perforation; and an electrically conductive multilayer emitter, electrically insulated from said multilayer gate and in electrical contact with said substrate layer, said multilayer emitter extending upward from said substrate, said multilayer emitter having an upper electronic-emitting edge in close proximity to said mutlilayer gate layer.