Patent ID: 8906598
Filing Date: 2014-12-09
Classification: G03F,H01L

Abstract:
1. A pattern forming method, comprising: forming a first resist pattern on a processing surface using a first resist composition; forming a coating layer using a coating material so as to cover a surface of the first resist pattern; applying a second resist composition over the first resist pattern above which the coating layer has been formed so as not to dissolve the first resist pattern with the second resist composition to thereby form a second resist film; and selectively exposing the second resist film to exposure light and developing the second resist film to thereby expose the first resist pattern to the air, as well as forming a second resist pattern in an area of the processing surface where the first resist pattern has not been formed, wherein the coating material absorbs the exposure light, and the coating material contains polyparahydroxystyrene, together with 2-hydroxybenzyl alcohol or 4-hydroxybenzyl alcohol or both thereof.