13-01-2011 дата публикации
Номер: JP2011007876A
Принадлежит:
PROBLEM TO BE SOLVED: To provide a radiation-sensitive resin composition which is a material of a resist film that obtains a good pattern shape, has excellent depth of focus, prevents elution into a liquid for liquid immersion exposure, such as water, ensures a large receding contact angle to the liquid for liquid immersion exposure, and prevents development defects, and to provide a polymer to be used as a resin component of the radiation-sensitive resin composition, and a resist pattern forming method using the radiation-sensitive resin composition. SOLUTION: In the invention, a plurality of fluorine atom-containing polymers are used at the same time. The radiation-sensitive resin composition comprises a fluorine atom-containing polymer (A1) which, under the following conditions, dissolves in a 2.38% aqueous solution of tetramethylammonium hydroxide at 23°C at a dissolution rate of <10 nm/s; a fluorine atom-containing polymer (A2) which, under the following conditions, dissolves in a ...
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