Patent ID: 8951711
Filing Date: 2015-02-10
Classification: C08L,C09D,G03F

Abstract:
1. A composition for forming silicon-containing film to be formed in a multi-layer resist method used in lithography, the composition containing, at least, a silicon-containing compound (A) and an organic solvent (B); wherein the silicon-containing compound (A) is obtained by hydrolytically condensing a mixture comprising: one or more kinds selected from a hydrolyzable silicon compound represented by the following general formula (A-1), a hydrolyzate of the compound, a condensate of the compound, and a hydrolysis condensate of the compound; and one or more kinds of compounds each selected from a group consisting of a hydrolyzable silicon compound represented by the following general formula (A-2-1), a hydrolyzate of the compound, a condensate of the compound, a hydrolysis condensate of the compound, a reactive compound represented by the following general formula (A-2-2), a hydrolyzate of the compound, a condensate of the compound, and a hydrolysis condensate of the compound, wherein R each R each R m2 and m4 represent integers satisfying that 0≦m2+m4≦2; each R each m11, m12, and m13 independently represent 0 or 1, and satisfy that 0≦m11+m12+m13≦3, and R each R m21+m22+m23/2 represents a valence to be determined by a kind of U, each m21, m22, and m23 independently represent an integer of 0 or more, and U represents one of elements belonging to the III group, IV group, and V group in the periodic table, except for carbon and silicon.