Positive-tone photoresist containing diester dissolution inhibit

Radiation imagery chemistry: process – composition – or product th – Diazo reproduction – process – composition – or product – Composition or product which contains radiation sensitive...

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430192, 4302701, G03F 7023

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active

055321062

ABSTRACT:
A positive-tone photoresist is provided. The photoresist comprises a polymer, a photoactive agent, and a dissolution inhibitor. The dissolution inhibitor comprises a compound of Formula I: ##STR1## wherein R.sub.1 is a C.sub.1 -C.sub.20 alkyl, cyclo alkyl, bensyl, phenyl, alkyl substituted cyclo alkyl, alkoxy substituted cyclo alky, alkyl substituted phenyl, alkoxy substituted phenyl, acetoxy substituted phenyl, hydroxy substituted phenyl, t-butyloxycarbonyloxy substituted phenyl, diphenyl alkyl, alkyl substituted diphenyl, alkoxy substituted diphenyl, alkyl substituted diphenyl alkyl, or alkoxy substituted diphenyl alkyl; and R.sub.2 is a C.sub.1 -C.sub.20 alkyl, cyclo alkyl, benzyl, phenyl, alkyl substituted cyclo alkyl, alkoxy substituted cyclo alkyl, alkyl substituted phenyl, alkoxy substituted phenyl, hydroxy substituted phenyl, acetoxy substituted phenyl, or t-butyloxycarbonyloxy substituted phenyl.
The present invention also provides a method of making microelectronic structures.

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