Patent ID: 6566036
Filing Date: 2003-05-20
Classification: G03F,Y10S

Abstract:
A chemically amplified resist comprising hydroxystyrene resin protected by an ethoxyethyl group and acting as base resin, the hydroxystyrene resin having a molecular weight between 5000 and 20000 and represented by a general formula [1]; a radiation-sensitive acid generator; polystyrene acting as a filler and having a molecular weight between 150 and 20000; and a solvent for dissolving the base resin, the acid generator and the filler,wherein a content of the hydroxystyrene resin is between 10 and 20% in weight with respect to the entire chemically amplified resist, contents of the acid generator and the filler are between 1 and 15% in weight and between 0.5 and 6.0% in weight, respectively, with respect to the base resin, and a balance is the solvent