Patent ID: 7851789
Filing Date: 2010-12-14
Classification: G03F

Abstract:
1. A photosensitive resin composition for a pad protective layer, comprising: (A) an alkali soluble resin, (B) a reactive unsaturated compound, (C) a photoinitiator, and (D) a solvent, wherein the (A) alkali soluble resin includes a copolymer including about 5 to about 50 wt % of a unit represented by Chemical Formula 1, about 1 to about 25 wt % of a unit represented by Chemical Formula 2, and about 45 to about 90 wt % of a unit represented by Chemical Formula 3, and wherein the total weight of the units represented by Chemical Formulae 2 and 3 is greater than 70 wt %: wherein in the above Formula 1, R wherein in the above Formula 2, R each R n wherein in the above Formula 3, R R