Patent ID: 7108954

Claim:
A radiation sensitive refractive index changing composition comprising (A) a decomposable compound, (B) a non-decomposable compound having a higher refractive index than the decomposable compound (A), (C) a radiation sensitive decomposer and (D) a stabilizer, wherein the decomposable compound (A) contains at least one compound having at least one structure selected from the group consisting of structures represented by the following formulas (1) to (7); wherein R 1 and R 2 are each independently an alkylene group, perfluoroalkylene group or alkylsilylene group, and the alkylene group and the perfluoroalkylene group may contain —O—, —CO—, —COO— or —OCOO— bond, wherein M is Si or Ge, R 3 is an alkylene group or perfluoroalkylene group, R 4 is an alkylene group, perfluoroalkylene group, alkylsilylene group or single bond, R 5 , R 6 , R 7 and R 8 are each independently a hydrogen atom, alkyl group, alkoxyl group, alkoxyester group, perfluoroalkyl group, perfluoroalkoxyl group, perfluoroalkoxyester group or perfluoroaryl group, m is an integer of 0 to 2, and the alkylene group or the perfluoroalkylene group may contain —O—, —CO—, —COO— or —OCOO— bond, wherein R 9 and R 10 are each independently an alkylene group or perfluoroalkylene group, the alkylene group or the perfluoroalkylene group may contain —O—, —CO—, —COO— or —OCOO— bond, wherein R 11 is an oxyalkylene group or single bond, and R 12 is a hydrogen atom, alkyl group, alkoxyl group, alkoxyester group, perfluoroalkyl group, perfluoroalkoxyester group or perfluoroaryl group, wherein R 13 is a hydrogen atom, alkyl group, alkoxyl group, alkoxyester group, perfluoroalkyl group, perfluoroalkoxyl group, perfluoroalkoxyester group or perfluoroaryl group, wherein R 14 is an alkylene group or a structure represented by the following formula (6)-1, (6)-2 or (6)-3: wherein R 15 , R 16 , R 17 and R 18 are each independently a hydrogen atom, chain alkyl group having 1 to 6 carbon atoms, chlorine atom, bromine atom, iodine atom, hydroxyl group, mercapto group, carboxyl group, alkoxyl group having 1 to 6 carbon atoms, alkylthio group having 1 to 6 carbon atoms, haloalkyl group having 1 to 6 carbon atoms, haloalkoxyl group having 1 to 6 carbon atoms, haloalkylthio group having 1 to 6 carbon atoms, hydroxyalkyl group having 1 to 6 carbon atoms, mercaptoalkyl group having 1 to 6 carbon atoms, hydroxyalkoxyl group having 1 to 6 carbon atoms, mercaptoalkylthio group having 1 to 6 carbon atoms, aryl group having 6 to 10 carbon atoms or aralkyl group having 7 to 11 carbon atoms, —O—R 19 —O— (6)-2 wherein R 19 is an alkylene group, —NH—R 20 NH— (6)-3 wherein R 20 is an alkylene group, wherein R 21 is an alkylene group.