| abstract |
A photosensitive compound comprising at least one o-quinonediazide sulfonic acid ester of a phenolic compound, said esters selected from the group consisting of formulae (IB) and (IIB) :n n wherein R 1 , R 2 , R 11 , and R 12 are each independently selected from the group consisting of hydrogen, OD, halogen, lower alkyl group having 1 to 4 carbon atoms, lower alkyl ether groups having 1 to 4 carbon atoms, and lower alkyl thioether groups having 1 to 4 carbon atoms; nwherein each OD group is a hydroxyl or an o-quininediazide sulfonic acid ester group wherein each D is selected from the group consisting of naphthoquinonediazide sulfonyl group or benzoquinonediazide sulfonyl group, provided that at least one -OD is an o-quinonediazide sulfonic acid ester group. |