[Problem] To provide a curable resin composition for obtaining a cured product that can satisfy both high heat resistance and high mechanical strength, a cured product thereof, and methods of producing the curable resin composition and the cured product. Also provided is a semiconductor device using the cured product as a sealant.[Solution] A curable resin composition containing (A) a multifunctional benzoxazine compound having two or more benzoxazine rings, (B) an epoxy compound having at least one norbornane structure and at least two epoxy groups, (C) a biphenyl type epoxy compound, and (D) a curing agent, and optionally (E) an inorganic filler and (F) a curing accelerator; a cured product thereof; and methods of producing the curable resin composition and the cured product. A semiconductor device in which a semiconductor element is disposed in a cured product obtained by curing a curable resin composition containing components (A) to (D), and optionally components (E) and (F).
展开▼
