Patent ID: 9052594
Filing Date: 2015-06-09
Classification: C08F,G03F,Y10S

Abstract:
1. A positive photosensitive composition comprising: a resin (A) whose dissolution rate in an alkaline developing solution increases by the action of an acid, the resin (A) containing an acid decomposable repeating unit represented by a general formula (I) and an acid nondecomposable repeating unit represented by a general formula (II); a compound (B) capable of generating an acid upon irradiation with one of active rays and radiations; and a basic compound (C): wherein Xa A ALG represents an acid leaving hydrocarbon group and has a polycyclic hydrocarbon structure, Xa A ACG represents an acid nonleaving hydrocarbon group which does not have a polycyclic hydrocarbon structure and does not contain a polar substituent, and further wherein the acid nondec mposable repeating unit represented by the general formula (II) is contained in an amount of 1 to 25% by mole based on all of the repeating nits in the resin (A), and the content of the acid decomposable repeating unit represented by formula (I) is 40 to 60% by mole based on all of the repeating units in the resin (A).