摘要 |
A positive resist composition comprises (A) a resin component which becomes soluble in an alkaline developer under the action of an acid, and (B) an acid generator. The resin (A) is a polymer comprising tertiary alkyl protective group units having a hydrophobic tetracyclo[4.4.0.1<SUP>2,5</SUP>.1<SUP>7,10</SUP>]-dodecane structure, hydroxyadamantane units, monocyclic lactone units, and carboxylic acid units. The acid generator (B) is a specific sulfonium salt compound.
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