ALKALI SOLUBLE BINDER RESIN AND NEGATIVE-TYPE PHOTORESIST RESIN COMPOSITION COMPRISING THE SAME

摘要

PURPOSE: An alkali soluble resin polymer and a negative type photo-sensitive resin composition are provided to maintain the chemical resistance characteristic, the sensitivity, and the pattern characteristic of the alkali soluble resin and to improve the dispersion stability and the protrusion characteristic of the composition. CONSTITUTION: An alkali soluble binder resin includes a monomer with an unsaturated double bond, a double bond monomer with carboxylic acid, and an unsaturated double bondable monomer. The molecular weight distribution of the resin is between 2.0 and 3.5. The unsaturated double bondable monomer is represented by chemical formula 1. In the chemical formula 1, the R is selected from a group including (meta)acrylrate,α-hydroxyl methyl metacrylate,α-chloroacrylate, monoallyl fumarate, monoallyl maleate, monoallyl benzoate, monoallyl phthalate.