Patent ID: 6406829
Filing Date: 2002-06-18
Classification: G03F,Y10S

Abstract:
A negative-working photoresist composition which comprises, as a uniform solution in an organic solvent:(A) 100 parts by weight of an alkali-soluble resin; (B) from 0.5 to 20 parts by weight of an onium salt compound of which the anionic moiety is a fluoroalkyl sulfonate anion as a radiation-sensitive acid-generating agent; (C) from 3 to 50 parts by weight of an ethyleneurea compound represented by the general formula â€ƒin which R1 and R2 are each a hydroxyl group or an alkoxy group having 1 to 4 carbon atoms and R3 and R4 are each a hydrogen atom, a hydroxyl group or an alkoxy group having 1 to 4 carbon atoms, as a crosslinking agent; and (E) from 0.01 to 1.0 part by weight, per 100 parts by weight of the component (A), of a phosphorous-containing oxoacid.