| 摘要 |
A positive resist composition comprising a resin (A), which is decomposed by the action of an acid to increase solubility in an alkali developing solution, containing a structural unit including a group represented by formula (X) defined in the specification and/or a resin (B), which is decomposed by the action of an acid to increase solubility in an alkali developing solution, containing a structural unit including a group represented by formula (Y) defined in the specification, and a resin (C), which is decomposed by the action of an acid to increase solubility in an alkali developing solution, containing a structural unit including a group represented by formula (Q) defined in the specification; and a compound that generates an acid upon irradiation of an actinic ray or radiation.
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