NEGATIVE TYPE LIQUID PHOTORESIST COMPOSITION

摘要

PURPOSE: Provided is a negative type liquid photoresist composition, which has excellent close contact force of fine lines and resolution and improved coating capability with no coating defects. CONSTITUTION: The negative type liquid photoresist composition comprises a binder polymer, a photopolymerization initiator, a photopolymerization monomer and an additive, wherein the bonder polymer is an acrylate polymer dissolved in the solvent of 1-methoxy-2-propanol. In particular, the acrylate polymer has a glass transition temperature of 100-150 deg.C, an acid value of 40-130 mgKOH/g and a weight average molecular weight of 20000-60000. Additionally, the additive is preferably triphenyl phosphate.