Patent ID: 8551687
Filing Date: 2013-10-08
Classification: G03F,H05K

Abstract:
1. A photosensitive resin composition comprising: a) a polyamic acid that is represented by the following Formula 1; b) two or more (meth)acrylate-based compounds that include one or more double bonds between carbons; c) a photopolymerization initiator; d) a phosphorus-based flame retardant; and e) an organic solvent: wherein X X wherein the polyamic acid is produced by using one or more diamine compounds that include an aromatic ring molecular structure and one or more acid dianhydride compounds that include an aromatic ring molecular structure, and the molar ratio of the one or more acid diamine compounds and the one or more acid anhydride compounds is 1:0.9 to 1:1.1; wherein the mass average molecular weight of the polyamic acid is in the range of 5,000 to 300,000; wherein b) two or more (meth)acrylate-based compounds that include one or more double bonds between carbons comprises i) one or more (meth)acrylates that have two photopolymerizable double bonds between carbon atoms, which is represented by the following Formula 5 or Formula 6, and ii) at least one of a (meth)acrylate compound selected from a (meth)acrylate compound that includes one or more photopolymerizable double bonds between carbon atoms and a hydroxyl group, which is represented by the following Formula 7, and a (meth)acrylate compound that includes one or more photopolymerizable double bond between carbon atoms and an epoxy group, which is represented by the following Formula 8: wherein R1 is an aromatic that has two or more benzene rings in a molecule thereof, R2 is an ethylene oxide or propylene oxide group, R3 is hydrogen or a methyl group, m and n are each an integer of not less than 2, and a value of m +n is an integer in the range of 4 to 30, wherein R4 is an organic group that includes 1 to 10 carbon atoms and hydrogen, or 1 to 10 carbon atoms, oxygen and hydrogen, and m is an integer in the range of 1 to 14, wherein R5 is an organic group that includes 2 to 8 carbon atoms, oxygen and hydrogen, R6 is hydrogen or a methyl group, and m is an integer in the range of 1 to 3, wherein R7 is an organic group that includes 1 to 6 carbon atoms and hydrogen, R8 is hydrogen or a methyl group, and n is an integer in the range of 1 to 3; and wherein the d) phosphorus-based flame retardant comprises a compound that is represented by the following Forula 9: wherein n is an integer in which 0<n<10, a, b are each an integer, and a+b is 3.