Optical waveguide photosensitive resin composition, photocurable film for forming optical waveguide core layer, optical waveguide using same, and mixed flexible printed circuit board for optical/electrical transmission

Abstract

Provided is an optical waveguide photosensitive resin composition containing a photocurable resin and a photopolymerization initiator, in which the photopolymerization initiator is a specific photoacid generator represented by the general formula (1). Accordingly, when a core layer is formed by using the optical waveguide photosensitive resin composition as a material for forming an optical waveguide, especially a core layer-forming material, excellent high transparency (low loss effect) is obtained. In the formula (1), R1 and R2 each represent hydrogen or an alkyl group having 1 to 15 carbon atoms, and may be identical to or different from each other.

Dependencies are inferred from the claim text.