Patent ID: 8257908

Claim:
A method for manufacturing a semiconductor device comprising the steps of: forming an underlayer coating on a semiconductor substrate from a coating-type underlayer coating forming composition comprising a polymer containing: a structural unit of formula (1): wherein R 1 is a hydrogen atom or a methyl group, X is a halogen atom, an alkyl group, an alkoxy group, a thiol group, a cyano group, a carboxy group, an amino group, an amide group, an alkoxycarbonyl group, or a thioalkyl group on a naphthalene ring, n is an integer of 0 to 7, when n is an integer other than 7, hydrogen atoms are present on residual positions; and a structural unit of formula (2): wherein R 1 is a hydrogen atom or a methyl group. A 1 is an organic group containing a p-hydroxy benzene group or a C 1-10 hydroxyalkyl ester, wherein the polymer contains the structural unit of formula (1) in a molar ratio of 0.6 or more and the structural unit of formula (2) in a molar ratio of 0.02 or more, based on all structural units constituting the polymer; forming a resist coating on the coating-type underlayer coating; forming a resist pattern by exposure to light and development; etching the underlayer coating by use of the resist pattern to form a pattern; and processing the semiconductor substrate by use of the patterned underlayer coating.