Patent ID: 6749991
Filing Date: 2004-06-15
Classification: G03F,Y10S

Abstract:
An alkali-developable chemical-amplification negative-working photoresist composition which comprises, as a uniform solution in an organic solvent:(A) from 0.5 to 30 parts by weight of a compound capable of releasing an acid by irradiation with actinic rays; and (B) 100 parts by weight of a resinous compound capable of being insolubilized in an aqueous alkaline solution in the presence of an acid, the resinous compound as the component (B) having, in the molecule, two kinds of functional groups capable of reacting each with the other to form an intermolecular or intramolecular ester linkage in the presence of an acid whereby the resinous compound is insolubilized in an aqueous alkaline solution.