Patent ID: 6628052
Filing Date: 2003-09-30
Classification: H01J

Abstract:
An enhanced electron field emission Spindt tip structure, comprising:a substrate; a metal interconnect above the substrate to which a metal field emitter Spindt tip is affixed; and successive dielectric and metal layers, each of said dielectric layers comprising a first dielectric sublayer and a second dielectric top layer, each dielectric layer having a dielectric aperture with a first horizontal dimension, the dielectric aperture having second-dielectric vertical walls and a second-dielectric collar, each of said metal layers having a metal aperture with a second horizontal dimension smaller than the first horizontal dimension, the metal-layers thicker near the apertures and thinner where the metal-layers overlie the second dielectric top layers, the dielectric apertures and metal apertures are coaxial with the metal field emitter Spindt tip.