Photosensitive resin composition for projection exposure, photosensitive element, method for forming resist pattern, process for producing printed wiring board and process for producing lead frame
Abstract:
An object of the present invention is to provide a photosensitive resin composition for projection exposure capable of forming a resist pattern that is excellent in adhesion, resolution, and inhibitory properties against the occurrence of resist footing, and the present invention provides a photosensitive resin composition for projection exposure comprising (A) a binder polymer; (B) a photopolymerizable compound having an ethylenically unsaturated bond; (C) a photopolymerization initiator; and (D) a sensitizing dye, wherein the (B) photopolymerizable compound having an ethylenically unsaturated bond comprises a (meth)acrylate compound having a skeleton derived from dipentaerythritol and a compound represented by the following formula (III): wherein R8, R9, R10, and R11 each independently represent a hydrogen atom or a methyl group, X and Y each independently represent an ethylene group or a propylene group, p1, p2, q1, and q2 each independently represent a numerical value of 0 to 9, both p1+q1 and p2+q2 are 1 or more, and p1+q1+p2+q2 is 2 to 9.
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