Patent ID: 8288073
Filing Date: 2012-10-16
Classification: G03F

Abstract:
1. A pattern forming method comprising: coating a composition to form a resist under layer film on a substrate, said composition comprising a compound having a phenolic hydroxyl group and a solvent; setting said composition under an oxidizing atmosphere with an oxygen content of 1% or more by volume and a temperature of 300 ° C. or higher to form a resist under layer film; forming an intermediate layer on said resist under layer film, said intermediate layer including an inorganic oxide; forming a resist film on said intermediate layer using a resist composition solution; exposing necessary parts of the resist film to radiation; developing the exposed resist film to form a resist pattern; dry-etching said resist under layer film and said intermediate layer using said resist pattern as a mask; and dry-etching said substrate using said resist under layer film and said intermediate layer as a mask.