Patent ID: 7303854

Claim:
A method for forming an electrode of a field emission type of display device, characterized by having the following steps: a step in which a photosensitive copper conductive composition comprising: a mixture of (a) copper powder at least 70 wt % out of 100 wt % copper powders having a particle size in the range of 0.2-3 μm and (b) an inorganic binder with a softening point in the range of 380 to less than 500° C. in an amount of 1-40 wt % based on 100 wt % copper powders, said mixture being dispersed in an organic vehicle comprising (c) an organic polymer binder, (d) a phototoinitiator, (e) a photohardenable monomer, and an organic solvent; and the photosensitive copper conductive composition being fireable at a temperature in the range of 450-600° C. in a reductive atmosphere is coated as an electrode on an underlying layer of dielectric layer formed on a glass substrate, a step in which the coated layer is exposed to actinic radiation through a prescribed electrode pattern mask to photopolymerize the exposed part, a step in which the development is performed to remove the unexposed part, and a step in which sintering is performed based on a sintering profile with the sintering peak temperature around about 500° C. in a reductive atmosphere to burn out the organic solvent and to sinter the inorganic binder powder and the copper powder.