Patent ID: 7044822
Filing Date: 2006-05-16
Classification: B82Y,H01J

Abstract:
1. A method of manufacturing a field emission device, the method comprising: (a) preparing a substrate structure in which a cathode electrode formed on a substrate, a gate insulating layer having a through hole through which part of the cathode electrode is exposed formed on the cathode electrode, and a gate electrode having a gate hole corresponding to the through hole formed on the gate insulating layer are sequentially stacked; (b) forming a sacrificial layer on the surface of the substrate structure and on an inner wall of the through hole other than the cathode electrode exposed to the bottom of the through hole; (c) coating a resistive material on the surface of the substrate structure to a predetermined thickness, covering the through hole with the resistive material, and forming an electron emission material layer on the resistive material layer; (d) performing lift-off for removing the sacrificial layer formed on the surface of the gate electrode and on an inner wall of the through hole using an etchant and forming an emitter formed of the resistive material layer and the electron emission material layer formed on the resistive material layer in an inner portion of the through hole; and (e) firing the emitter.