Patent ID: 10838303

Abstract:
A resist underlayer film forming composition for lithography for forming a resist underlayer film that can be used as a hard mask, including: a hydrolyzable silane, a hydrolysis product thereof, a hydrolysis condensate thereof, or a combination thereof as a silane, wherein the hydrolyzable silane includes at least one hydrolyzable silane selected from the group made of hydrolyzable silanes of Formula (1), Formula (2), and Formula (3):A method for producing a semiconductor device including: forming an organic underlayer film on a semiconductor substrate; applying the resist underlayer film forming composition onto the organic underlayer film and baking the composition to form a resist underlayer film; applying a resist film forming composition onto the resist underlayer film to form a resist film; exposing the resist film to light; developing the resist film after exposure to obtain a resist pattern; and etching in this order.