Patent ID: 7435537
Filing Date: 2008-10-14
Classification: G03F,Y10S

Abstract:
1. A method of forming a patterned layer on a substrate, the method comprising: providing a substrate having a material layer on a surface thereof; depositing a photoresist composition on the substrate to form a photoresist layer on the material; applying a composition on the photoresist layer to form a top antireflective and barrier layer, said composition comprising an aqueous base-soluble polymer having a backbone and a fluorinated half ester moiety, wherein the fluorinated half ester moiety are pendant from the backbone; pattern-wise exposing the photoresist layer and the top antireflective and barrier layer to an imaging radiation; removing the top antireflective and barrier layer and the exposed portions of the photoresist layer to form a patterned photoresist layer on the material layer; and transferring the pattern in the photoresist layer to the material layer.