Positive photoresist composition

摘要

A positive photoresist composition is disclosed, comprising a resin having a structural unit containing a specific group and capable of decomposing under the action of an acid to increase the solubility in an alkali developer, a resin having a structural unit containing a specific group and capable of decomposing under the action of an acid to increase the solubility in an alkali developer, and a compound capable of generating an acid upon irradiation with actinic rays or radiation.