Patent ID: 7160625

Claim:
A film formed by the process which comprises forming the film by chemical vapor deposition from a precursor material, which precursor material contains an organic silane compound having such a structure that at least one secondary hydrocarbon group and/or tertiary hydrocarbon group is directly bonded to a silicon atom and which is represented by formula (2): wherein the organic silane compound has such a structure that a tertiary hydrocarbon group is directly bonded to a silicon atom and has the following formula (2): wherein each of R 5 and R 6 is a C 1-20 hydrocarbon group, each of R 7 and R 8 is a hydrogen atom or a C 1-20 hydrocarbon group, provided that a plurality of R 5 's, or R 6 and R 8 may be bonded to each other to form a cyclic structure, and each of b and c is 0.