Patent ID: 6741017
Filing Date: 2004-05-25
Classification: B82Y,H01J,Y10S

Abstract:
An electron source comprising a first sheet including a support portion formed of a calcinable material, a cathode electrode and an emitter; a second sheet including a support potion formed of a calcinable material and a control electrode, said first and second sheets each defining a plurality of through-holes disposed in spaced relationship to one another, said second sheet being disposed on said first sheet such that said plurality of through holes in said second sheet are disposed in substantially registered relation with at least some of the plurality of through-holes in said first sheet such that said first and second sheets are substantially aligned with one another; and at least one spacer disposed on said second sheet; further wherein said emitter comprises at least one carbon nanotube disposed in each of preselected ones of the plurality of through-holes in said first sheet in substantial axial alignment therewith, and wherein said first and second sheets are calcined so as to form an integral, multi-layered structure having at least one spacer bonded thereto.