Patent ID: 8101339

Claim:
A resist pattern forming method comprising the steps of: (a) providing photosensitive element, comprising a support, and a photosensitive resin composition layer comprising a photosensitive resin composition formed on the support, wherein the photosensitive resin composition comprises (1) a binder polymer; (2) a photopolymerizing compound with at least one polymerizable ethylenic unsaturated group in the molecule; and (3) a photopolymerization initiator, wherein component (B) contains a compound represented by the following general formula (I), wherein in formula (I) R 1 , R 2 and R 3 each independently represent a group represented by the following general formula (II), wherein in formula (II) R 4 represents hydrogen or methyl, X represents C2-6 alkylene, and k represents an integer of 1-30, or wherein in formula (I) R 1 , R 2 and R 3 each independently represent a group represented by the following general formula (III), wherein in formula (III) R 5 represents hydrogen or methyl, Y represents C2-6 alkylene, m represents an integer of 1-10, n represents an integer of 1-10, and 1 represents an integer 1, wherein at least one from R 1 , R 2 and R 3 is a group represented by general formula (III), wherein Z 1 in formula (II) and Z 2 in formula (II) each independently represent a divalent group represented by the following general formulas (IV), (V) or (VI) provided below as wherein in formula (IV) p represents an integer of 1-10, (b) laminating the photosensitive resin composition layer of the photosensitive element on a circuit-forming board, and (c) exposing prescribed sections of the photosensitive resin composition layer to active light rays to form exposed sections, after which sections other than the exposed sections are removed.