Patent ID: 6589803
Filing Date: 2003-07-08
Classification: H01J

Abstract:
A method for fabricating a field emission structure, comprising:forming a first layer comprising dielectric material over a substrate and over at least one emitter tip on said substrate; forming a second layer comprising a material selectively etchable with respect to said dielectric material over said first layer; exposing portions of said first layer located over said at least one emitter tip through said second layer; substantially removing portions of said first layer adjacent said at least one emitter tip; substantially removing said second layer; forming a third layer comprising dielectric material adjacent to said first layer and said at least one emitter tip; forming a fourth layer comprising semiconductive material or conductive material over said third layer; exposing portions of said third layer located over said at least one emitter tip through said fourth layer; and substantially removing portions of said third layer adjacent said at least one emitter tip.