Patent ID: 7297469

Claim:
A method of manufacturing a cold cathode field emission device comprising the steps of; (A) forming a cathode electrode on a front surface of a supporting member, said cathode electrode extending in a first direction, (B) forming an insulating layer on the entire surface, (C) forming a gate electrode on the insulating layer, said gate electrode extending in a second direction different from the first direction, (D) forming an opening portion through the gate electrode and the insulating layer to expose the cathode electrode in the bottom portion of the opening portion, (E) forming a resist-material layer covering the side wall of the opening portion, the gate electrode and the insulating layer, (F) modifying the surface of the resist-material layer, (G) forming a photosensitive thick-film-paste-material layer at least in the opening portion, (H) irradiating the front-surface side of the supporting member with exposure light to expose a portion of the thick-film-paste-material layer which portion is positioned in the bottom portion of the opening portion to the exposure light, and then developing the thick-film-paste-material layer, to form an electron emitting portion constituted of the thick-film-paste-material layer on the cathode electrode positioned in the bottom portion of the opening portion, and (I) removing the resist-material layer.