NEGATIVE PHOTOSENSITIVE RESIN COMPOSITION, NEGATIVE PHOTOSENSITIVE DRY FILM, MATERIAL OBTAINED BY USING THE COMPOSITION AND PATTERN FORMING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a negative photosensitive resin composition having superior storage stability and photosensitivity, and to provide a negative type photosensitive dry film, a material obtained using the composition and a pattern forming method. SOLUTION: The negative photosensitive resin composition contains (A) a photo-curable resin having a photosensitive group crosslinkable by irradiation with light, (B) a photo-acid generating agent and (C) a benzopyran ring condensed compound having photosensitizing capacity to visible light of >=500 nm wavelength.