US Patent 7771913 Resist composition and patterning process using the same

There is disclosed a resist composition comprising, at least, a polymer including repeating units represented by the following general formula (1). There can be provided a resist composition that has a good barrier property against water, prevents resist components from leaching to water, has high receding contact angle against water, does not require a protective film, has an excellent process applicability, suitable for the liquid immersion lithography and makes it possible to form micropatterns with high precision.