摘要 |
A chemically amplified photoresist composition comprising, (a) a compound which cures upon the action of an acid or a compound whose solubility is increased upon the action of an acid; and (b) as photosensitive acid donor, at least one compound of the formula Ia, Ib, Ic, IIb or IIc wherein R<SUB>1 </SUB>is for example C<SUB>1</SUB>-C<SUB>5</SUB>alkyl, C<SUB>3</SUB>-C<SUB>30</SUB>cycloalkyl, C<SUB>1</SUB>-C<SUB>5</SUB>haloalkyl, C<SUB>2</SUB>-C<SUB>12</SUB>alkenyl, C<SUB>4</SUB>-C<SUB>8</SUB>cycloalkenyl, C<SUB>6</SUB>-C<SUB>12</SUB>bicycloalkenyl, phenyl, naphthyl, anthracyl, phenanthryl, or is a heteroaryl radical; all of which are unsubstituted or substituted; optionally some of the substituents form 5- or 6-membered rings with further substituents on the phenyl, naphthyl, anthracyl, phenanthryl, or heteroaryl ring or with one of the carbon atoms of the phenyl, naphtyl, anthracyl, phenanthryl, or heteroaryl ring; R'<SUB>1 </SUB>is for example C<SUB>1</SUB>-C<SUB>12</SUB>alkylene, C<SUB>3</SUB>-C<SUB>30</SUB>cycloalkylene, phenylene, naphtylene, diphenylene, or oxydiphenylene, wherein these radicals are unsubstituted or substituted; A and B for example are a direct bond; Ar<SUB>1 </SUB>and Ar<SUB>2 </SUB>independently of each other for example are phenyl, naphtyl, anthracyl, phenanthryl, or heteroaryl, all of which are unsubstituted or are substituted; Ar<SUB>3</SUB>, Ar<SUB>4 </SUB>and Ar<SUB>5 </SUB>for example have one of the meanings given for Ar<SUB>1 </SUB>and Ar<SUB>2</SUB>; Y is for example C<SUB>3</SUB>-C<SUB>3</SUB>-C<SUB>30</SUB>cycloalkylene, phenylene, naphthylene, diphenylene, or oxydiphenylene, all of which are unsubstituted or substituted. |