Patent ID: 7144453

Claim:
A composition for preparing substances having a porous interlayer dielectric thin film, said composition comprising: one or more of a monomeric saccharide derivative or an oligomeric saccharide derivative which is selected from the group consisting of monomeric saccharide derivatives represented by the following formulas (8) to (10), disaccharide derivatives represented by the following formulas (11) to (13) and a polymeric saccharide derivative represented by the following formula (14): in which R 1 , R 2 , R 3 , R 4 and R 5 are independently a C 2-30 acyl group, in which, R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , and R 8 are independently a C 2-30 acyl group, or in which R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 and R 11 are independently a C 2-30 acyl group; a thermo-stable organic or inorganic matrix precursor; and a solvent for dissolving both the saccharide derivative and the matrix precursor.