Patent ID: 7011935
Filing Date: 2006-03-14
Classification: G03F

Abstract:
1. A rework process for removing an imaging layer from a substrate stack, the stack comprising a substrate, an organic underlayer adjacent to said substrate, and an imaging layer comprising silicon adjacent to said organic underlayer, said process comprising the steps of: (a) contacting said substrate stack with an imaging layer removal solvent; (b) removing said imaging layer with said imaging layer removal solvent thereby forming an organic substrate/underlayer stack, wherein said imaging layer removal solvent is selected from the group consisting of: glycol ethers, ketones, esters, lactates, dimethylsulfoxide (DMSO), dimethylformamide (DMF), tetrahydrofuran (THF), methyl tetrahydrofuran, dioxane, tetrahydropyran, ethyl tetrahydropyran-4-acetate, methyl tetrahydropyran-4-methanol, tetrahydropyran-4-one, n-butyl acetate, n-amyl acetate, and any combinations thereof; and (c) removing said imaging layer removal solvent from said organic substrate/underlayer stack after said imaging layer is removed.