Patent ID: 7594841

Claim:
A method of fabricating a carbon nanotube field emitter array comprising the steps of: (a) providing a substrate; (b) forming a cathode layer having a first pattern on the substrate, wherein the first pattern is comprised of a plurality of transparent holes that are in shapes of an island or a volcano; (c) forming an opaque insulating layer having a second pattern on the substrate, wherein a predetermined part of the cathode layer is exposed and the opaque insulating layer is opaque to ultraviolet light; (d) forming a gate layer having the second pattern on the opaque insulating layer; (e) forming a carbon nanotube layer completely covering a top surface of the substrate; and (f) forming a plurality of carbon nanotube emitters on the substrate and in each of the plurality of transparent holes by exposing the carbon nanotube layer to a light beam coming from a backside of the substrate.