Method of forming a fine pattern

摘要

A process of forming a fine pattern including forming a first photoresist layer over a first layer of a semiconductor device. Portions of the first photoresist layer are exposed causing a photochemical reaction therein. Prior to developing the first photoresist layer, a second photoresist layer is formed over the first photoresist layer, and wherein at least one of the first photoresist layer and second photoresist layer comprises a photo base generator.