Patent ID: 9290623
Filing Date: 2016-03-22
CPC Classification: C07F,C08G,C09D,G03F,H01L

Claim Text:
1. A resist underlayer film forming composition, comprising: a hydrolysis product of a hydrolyzable silane of Formula (1) and a hydrolyzable silane of Formula (2) and a hydrolyzable silane of Formula (4), as a polymer, where Formula (1) is:  where in Formula (1), in Formula (1-1), Formula (1-2), and Formula (1-3), T 1 is an alkylene group, a cyclic alkylene group, an alkenylene group, an arylene group, a sulfur atom, an oxygen atom, an oxycarbonyl group, an amido group, a secondary amino group, or a combination of these groups and atoms; T 5 is an alkylidyne group, a sulfur atom, an amido group, a tertiary amino group, or a combination of these groups and atom; T 8 is an alkanetriyl group, a sulfur atom, an amido, group a tertiary amino group, or a combination of these groups and atom; each of T 2 , T 3 , T 4 , T 6 , T 7 , T 9 , and T 10 is independently a hydrogen atom, an alkyl group, an alkenyl group, or a hydrolyzable silyl group bonded optionally through an alkylene group; and T 11 is an alkylene group; R R a is an integer of 1 and b is an integer of 0 to 2, where a+b is an integer of 1 to 3; Formula (2) is:  where in Formula (2), and is bonded to a silicon atom through a Si—C bond: R R a is an integer of 1 and b is an integer of 0 to 2, where a+b is an integer of 1 to 3; and Formula (4) is: where