Patent ID: 7820748

Claim:
An insulating film forming composition, comprising: (A) at least one organic polymer, wherein the at least one organic polymer is a polymer of a monomer having at least one repeating unit containing a cage structure; (B) a solvent; and (C) at least one organic silicone compound represented by any of the following formulas (C-1) to (C-3): wherein, in formula (C-1), R 1 represents a methyl group or phenyl group; and x 1 is from 0 to 95 mol % and x 2 is from 5 to 100 mol %, with the proviso that x 1 +x 2 =100 mol %; in formula (C-2), R 2 and R 3 each represents an alkyl group, with the proviso that at least one of R 2 and R 3 represents an alkyl group having 2 or more carbon atoms; R 4 represents a methyl group or a 2-phenylpropyl group; and x 3 is from 5 to 100 mol % and x 4 is from 0 to 95 mol %, with the proviso that x 3 +x 4 =100 mol %; and in formula (C-3), Rf represents a fluoroalkyl group; and x 5 is from 0 to 95 mol % and x 6 is from 5 to 100 mol %, with the proviso that x 5 +x 6 =100 mol %.