abstract |
(57) Summary An object of the present invention is to provide a photosensitive negative and positive gradation composition for forming a polyimide image on a substrate. The photosensitive negative tone composition of the present invention comprises a polyamic alkyl ester and a photosensitive base generator. The photosensitive positive tone product of the present invention comprises a polyamic acid Includes an alkyl ester base or base precursor and a photosensitive acid generator. |