Patent ID: 6074264
Filing Date: 2000-06-13
Classification: H01J

Abstract:
A method of manufacturing a field emission element comprising the steps of:(a) forming a conductive gate electrode film on a surface of a substrate, the gate electrode film being made of at least one layer;(b) forming an insulating film on the gate electrode film;(c) forming a resist pattern on the insulating film through photolithograpy;(d) forming a hole through the insulating film through etching by using the resist pattern as a mask;(e) forming a hole in the gate electrode through etching by using the resist pattern and/or the insulating film as a mask;(f) removing the resist pattern before or after said step (e);(g) forming a first sacrificial film covering the insulating film and the substrate;(h) anisotropically etching back the first sacrificial film to leave a side spacer on a side wall of the hole of the gate electrode and/or on a side wall of the hole of the insulating film, the side spacer being made of a portion of the first sacrificial film;(i) forming a second sacrificial film covering the insulating film, the gate electrode, the side spacer, and the substrate;(j) forming a conductive emitter electrode on the second sacrificial film; and(k) removing a portion of the second sacrificial film to expose at least a portion of the emitter electrode film and a portion of the gate electrode film.