Patent ID: 6589862
Filing Date: 2003-07-08
Classification: H01L

Abstract:
A process for forming a dielectric coating on a substrate which comprises(a) forming a first dielectric composition film on a substrate which comprises a non-silicon containing or substantially non-silicon containing organic polymer; and (b) forming a second dielectric composition film on the first dielectric film, which second dielectric composition comprises a polymer having a structure selected from the group consisting of I and II: [Hâ€”SiO1.5]n[Râ€”SiO1.5]m, [H0.4-1.0SiO1.5-1.8]n[R0.4-1.0â€”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,â€ƒâ€ƒI. wherein 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; 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;[HSiO1.5]n[RSiO1.5]m, [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,â€ƒâ€ƒII. 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 and y 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.