Positive photoresist composition

Details Positive photoresist composition Positive photoresist composition

1996-09-30

1997-10-14

Chu, John S.

Radiation imagery chemistry: process, composition, or product th

Diazo reproduction, process, composition, or product

Composition or product which contains radiation sensitive...

430165, 430192, 430193, 534557, G03F 7023

Patent

active

056771037

ABSTRACT:
A positive photoresist composition which is of high resolution, high sensitivity and wide focusing range and suitable for high integration of semiconductor devices and shows superior resist pattern profile, comprising quinonediazide sulfonic acid ester as a photoresist, an alkali soluble resin, a solvent, and additives, said quinonediazide sulfonic acid ester being prepared through the esterification of 1,2-naphthoquinonediazidesulfonyl halide or 1,2-benzoquinonediazidesulfonyl halide with an aromatic hydroxy compound represented by the following structural formula I: ##STR1## wherein R.sub.1 and R.sub.2 are independently hydrogen, halogen, an alkyl group or an alkoxy group; a is an integer of 1 to 3; b is an integer of 1 to 8; c is an integer of 1 to 12; and R.sub.3 is an alkyl group containing ether, mercapthane, sulfoxide, sulfone, aryl group or hydroxy group.

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