Patent ID: 7354521

Claim:
A method of fabricating an inkjet print head, comprising: forming at least one energy generating element to eject ink on a substrate; and forming a chamber layer and a nozzle layer on the substrate, the nozzle layer having a nozzle corresponding to the energy generating element, wherein at least one of the chamber layer and the nozzle layer is formed using a photocurable resin composition that includes a photo-base generator, an epoxy resin and a non-photoreactive solvent and wherein the photocurable resin composition is photocurable at a wavelength of about 400 nm or less, wherein the photo-base generator is at least one compound selected from the group consisting of cobalt-amine salts, alkyl amine salts, O-acyloximes, benzyloxycarbonyl derivatives, o-nitrobenzyloxycarbonyl derivatives and formamides, wherein the photocurable resin composition further includes an ethylenically unsaturated compound, wherein the cobalt-amine salt compound is expressed by Formula 1 as follows: Co(NH 2 R) 5 X 2 +, where X is a halogen, and R is a hydrogen or an alkyl group having a carbon number of 2, 4 or 5, wherein the benzyloxycarbonyl compound is expressed by Formula 12 as follows: where R 1 and R 2 are independently hydrogen, R 3 and R 4 are alkyl groups having a carbon number between 1 and 5, and R 5 and R 6 are linear alkyl groups having a carbon number between 1 and 5 or annular alkyl groups having a carbon number between 5 and 12, wherein the epoxy resin contains at least one of a bi-functional epoxy resin and a multi-functional epoxy resin, and wherein the photocurable resin composition further includes an ethylenically unsaturated compound.