Patent ID: 7470636

Claim:
An interlayer dielectric film for a semiconductor device comprising an organic silicate polymer, wherein the organic silicate polymer comprises a carbon bridge unit in a network and is prepared by a cross-linking reaction between a mixture consisting of component (a) and component (b), wherein: component (a) comprises an organosilane of the formula R 1 m SiX 4−m wherein R 1 is a non-hydrolysable group selected from the group consisting of hydrogen, and alkyl; X comprises a hydrolysable group selected from the group consisting of halide, and alkoxy; and m is an integer of from 0 to 3, or a partially hydrolyzed condensate thereof; and component (b) comprises an organic bridged silane of the formula R 3 p Y 3−p Si-M-SiR 4 q Z 3−q wherein each of R 3 and R 4 which may be the same or different, comprises a non-hydrolysable group selected from the group consisting of hydrogen, and alkyl; each of Y and Z which may be the same or different, comprises a hydrolysable group selected from the group consisting of halide, and alkoxy; M comprises an alkylene group comprising from one to three carbon atoms; and p and q are integers of from 0 to 1.