Patent ID: 8003309

Claim:
A process for forming a photoresist image in a film on a substrate comprising: (a) coating a film comprising a photoresist polymer and a fluoropolymer additive comprising poly(3,5-bis(1,1,1,3,3,3-hexafluoroisopropan-2-ol-2-yl)cyclohexyl methacrylate-co-1,1,1,3,3,3-hexafluoroisoprop-2-yl trifluoromethacrylate-co-1,1,1,2,2,3,3,4,4-nonafluorohex-6-yl vinyl ether), wherein the fluoropolymer additive segregates to a surface of the film forming an enrichment layer over the film; (b) covering the film with a layer of decahydronaphthalene fluid, wherein the composition forms static receding contact angles of at least 30% with the hydrocarbon fluid; (c) imagewise exposing the film to 193 nm radiation; and (d) developing the image in the film.