Patent ID: 8975110
Filing Date: 2015-03-10
Classification: C08G,C09D,G03F,H01L

Abstract:
1. A method of forming a passivation layer, comprising: forming a coating layer on an object using a composition, the composition including about 30 to about 60 percent by weight of a mixed polymer resin, about 3 to about 10 percent by weight of a photoactive compound, about 2 to about 10 percent by weight of a cross-linking agent, and an organic solvent, the mixed polymer resin being formed by blending polyamic acid and polyhydroxy amide; partially removing the coating layer to form a coating layer pattern; and performing a baking process on the coating layer pattern wherein the mixed polymer resin after performing the baking process is represented by following Chemical Formula (3), wherein R represents a C6-C30 divalent aromatic group, R being a monocyclic aromatic group, a condensed aromatic group in which the monocyclic aromatic group is linked to each other directly or by a linking group or a non-condensed polycyclic aromatic group, X represents 2,2-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride, biphenyltetracarboxylic dianhydride or 3,3′,4,4′-benzophenonetetracarboxylic dianhydride, Y represents p-phenyl diamine 4,4′-oxydianiline or 2,2′-bis(trifluoromethyl)-4,4′-diaminobiphenyl, and n is an integer of about 2 to about 1,000.