Patent ID: 6770975
Filing Date: 2004-08-03
Classification: H01L

Abstract:
An integrated circuit structure which comprises a substrate and(a) an organic layer on a surface of the substrate which comprises a pattern of metal lines on the substrate and an organic dielectric on the substrate surface between the metal lines, and wherein the organic dielectric comprises a dielectric selected from the group consisting of alkoxysilane polymers, organic siloxanes, hydroorganosiloxanes, hydrogenmethylsilsesquioxane, hydrogenethylsilsesquioxane, hydrogenpropylsilsesquioxane, hydrogenbutylsilsesquioxane, hydrogentert-butylsilsesquioxane and hydrogenphenylsilsesquioxane, methylated siloxane polymers; polymers having the formulae [(HSiO1.5)xOy(RSiO1.5)z]n, [(HSiO1.5)x(RSiO1.5)y]n and [(HSiO1.5)xOy(RSiO1.5)z]n wherein x=about 6 to about 20, y=1 to about 3, z=about 6 to about 20, n=1 to about 4,000, and each R is independently C1 to C8 alkyl or C6 to C12 aryl; organic silicon containing polymers having the formulae[Hâ€”SiO1.5]n[Râ€”SiO1.5]m, [H0.4â€”SiO1.5-1.8]n[R0-1.0â€”SiO1.5-1.8]m, [H0-1.0â€”SiO1.5-2.0]n[Râ€”SiO1.5]m, [Hâ€”SiO1.5]x[Râ€”SiO1.5]y[SiO2]z, wherein R is selected from substituted and unsubstituted straight chain and branched alkyl groups, cycloalkyl groups, substituted and unsubstituted aryl groups, and mixtures thereof the sum of n and m, or the sum or x, y and z is from about 8 to about 5000, and m and y are selected such that carbon containing substituents are present in an amount of less than about 40 Mole percent;organic silicon containing polymers having the formulae:[HSiO1.5]n[RSiO1.5]m, â€ƒ[H0.4-1.0SiO1.5-1.8]n[R0.4-1.0SiO1.5-1.8]m,[H0-1.0SiO1.5-2.0]n[RSiO1.5]m, wherein the sum of n and m is from about 8 to about 5000 and m is selected such that the carbon containing substituent is present in an amount of from about 40 mole percent or greater; and[HSiO1.5]x[RSiO1.5]y[SiO2]z; wherein the sum of x, y and z is from about 8 to about 5000 andy is selected such that the carbon containing substituent is present in an amount of about 40 mole % or greater; and wherein R is selected from substituted and unsubstituted straight chain and branched alkyl groups, cycloalkyl groups, substituted and unsubstituted aryl groups, and mixtures thereof, and mixtures thereof; and(b) an inorganic layer on the organic layer which comprises an inorganic dielectric selected from the group consisting of hydrogensiloxanes, inorganic hydrogensilsesquioxanes and combinations thereof, having metal filled vias therethrough which connect to the metal lines of the organic layer; and wherein the hydrogensiloxanes have the formula [(HSiO1.5)xOy]n, and the hydrogensilsesquioxanes have the formula (HSiO1.5)n, wherein x=about 6 to about 20, y=1 to about 3, and n=1 to about 4,000.