PHOTOSENSITIVE EPOXY RESIN COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide a photosensitive epoxy resin composition which is low dielectric loss tangent capable of developing in the noncombustible aqueous solution. SOLUTION: This photosensitive epoxy resin composition comprises (a) 40-70 pts.wt. multifunctional epoxy resin, (b) 30-60 pts.wt. phenolic hydroxy group- containing resin and 1-10 pts.wt., based on the sum of (a) and (b) of 100 pts.wt., photo acid generation agent and is characterized by using a resin having an alicyclic structure as at least the (b) component.