Patent ID: 6034468
Filing Date: 2000-03-07
Classification: H01J

Abstract:
A field emitter device comprising a porous dielectric anodic metal oxide layer (10) having a front surface (12) and a back surface (14), an array of pores (16) extending through the anodic metal oxide layer from the front surface to the back surface, the pores containing wires (18) having back ends (22) and front ends constituting individual field emitting cathodes (20), a gate electrode (24) comprised of an electrically conducting material overlying the front surface of the anodic metal oxide layer wherein material of the gate electrode is substantially not present within overlying walls of the pores, and an address electrode (28) overlying the back surface of the anodic metal oxide layer and in electrical contact with the back ends of the wires, wherein there is a low or zero incidence of short circuits between the address electrode and the gate electrode, and wherein the front ends of the individual field emitting cathodes are approximately level with the front surface of the anodic metal oxide layer.