An immersion upper layer film composition is provided which exhibits
sufficient transparency for the exposure wavelength 248 nm(KrF) and 193
nm(ArF), can form a protective film on the photoresist film without being
intermixed with the photoresist film, is not eluted into water used
during immersion exposure to maintain a stable film, and can be easily
dissolved in an alkaline developer. The composition applied to coat on
the photoresist film when using an immersion exposure device which is
irradiated through water provided between a lens and the photoresist
film, the composition comprises a resin forming a water-stable film
during irradiation and being dissolved in a subsequent developer, and a
solvent containing a monovalent alcohol having 6 or less carbon atoms,
and the resin contains a resin component having an alcoholic hydroxyl
group on the side chain containing a fluoroalkyl group on at least the
carbon atom of .alpha.-position.