Positive-working photosensitive mixture and photolithographic copying material produced therefrom with o-quinone dialide sulfonyl ester and azo coupler

摘要

A positive-working photosensitive mixture containing an o-quinone diazide and a binder is disclosed wherein the mixture contains a compound which is able to form an azo coupling with the o-quinone diazide. A copying material produced with the photosensitive mixture has a high photosensitivity and an exceptional developer resistance. The photosensitive mixture is used in reproduction technique, and also in the field of resists.