Patent ID: 7955660

Claim:
A method of producing a thin film for optoelectronics comprising polymerizing an organo functionalized monomer having the formula: wherein: R 1 is a hydrolysable group R 2 is selected from alkyl groups, alkenyl groups and aryl groups, and R 3 is a bridging linear or branched bivalent hydrocarbyl group, applying the polymerized composition on a semiconductor substrate in the form of a layer and curing the layer to form a film of poly(organosiloxane) having a thickness of 0.01 to 50 μm, a dielectric constant of 4.0 or less, and an index of refraction of more than 1.58 at 632.8 nm, wherein the polymerized composition is obtained by copolymerizing a first monomer having said formula, wherein R 3 stands for a linear bivalent hydrocarbyl residue, with a second monomer having said formula, wherein R 3 stands for a branched bivalent hydrocarbyl residue, the molar ratio of the first monomer to the second monomer being 95:5 to 5:95.