Fluoroalcohol-containing materials have found considerable use in 193 nm immersion topcoat and topcoat-free
immersion resist materials due to their good water contact angles and base-dissolution properties.
Trifluoromethanesulfonamide-containing materials are another alternative which have been explored for use in 193 nm
photoresist and immersion topcoat applications; however, fluorosulfonamide materials have suffered from issues such as
low water contact angles. In this paper, we report the synthesis of a series of fluorosulfonamide-containing methacrylate materials with water contact angle and base dissolution performance that rivals or exceeds that of comparable fluoroalcohol-based materials.
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