Blue-violet laser light-sensitive composition, blue-violet laser for image-forming material and a blue-violet laser for image forming material

摘要

PROBLEM TO BE SOLVED: To provide a blue-violet laser sensitive composition which excels in sensitivity to blue-violet laser light and in developability and ensures easy stripping and removal of a resist image after resist processing when used for resist image formation, and which is free from edge fusion even if stored in a roll shape as a dry film material.;SOLUTION: The blue-violet laser sensitive composition contains (A) an alkali-soluble resin containing (meth)acrylates represented by formula (I) as copolymerized components, wherein R¹ represents H or methyl and R² represents a saturated or unsaturated hydrocarbon group containing a tertiary carbon atom and/or a quaternary carbon atom, (B) an ethylenically unsaturated compound, (C) a photopolymerization initiator and (D) a sensitizing dye having an absorption maximum in a wavelength region of 355-430 nm.;COPYRIGHT: (C)2007,JPO&INPIT