An object of the present invention is to provide:
a tetracarboxylic dianhydride which can lead to a polyimide usable as a base resin of a photosensitive resin composition capable of forming a fine pattern and obtaining high resolution without impairing excellent characteristics such as mechanical strength and adhesiveness;
a polyimide resin obtained by using the tetracarboxylic dianhydride; and
a method for producing the polyimide resin.
The tetracarboxylic dianhydride is defined by the following formula:
本发明的目的是提供:
一种四
羧酸二酐,它可以产生一种聚
酰亚胺,用作感光
树脂组合物的基体
树脂,能够形成精细图案并获得高分辨率,同时不影响机械强度和粘合性等优异特性;
使用四
羧酸二酐得到的聚
酰亚胺树脂;以及
生产聚
酰亚胺树脂的方法。
四
羧酸二酐由下式定义: