Patent ID: 8236482
Filing Date: 2012-08-07
Classification: G03F

Abstract:
1. A process for forming a photoresist image in a film on a substrate comprising: a) coating a film on a substrate, the film comprising a composition comprising a photoresist polymer and a fluoropolymer, the fluoropolymer comprising a monomer having a pendant group selected from alicyclic bis-hexafluoroisopropanol and aryl bis-hexafluoroisopropanol, wherein the fluoropolymer is not protected with an acid-labile group and further wherein the fluoropolymer segregates to a surface of the film forming an enrichment layer over the film, wherein the enrichment layer has a thickness of about 1 nm to about 5 nm; b) covering the film with a layer of hydrocarbon fluid; c) imagewise exposing the film to radiation; and d) developing the image in the film.