Boron nitride particles, epoxy resin compositions, semi-cured resin composition, the cured resin composition, the resin sheet, the manufacturing method of the heat-generating electronic component and boron nitride particles

摘要

The present invention, when it was added to the epoxy resin, reduce the thermal conductivity Without, it is an object and issues the provision of the inorganic nitride particles having excellent dispersibility. Inorganic nitride particles of the invention, the polarity term of surface energy is 1mN / m or more, when measured at 25 , humidity of 50% and a contact angle of 25 water 90 Or less, and 25 contact angle of of n- hexadecane is 20 or less. The epoxy resin composition of the present invention contains the above inorganic nitride particles, an epoxy resin and a curing agent. The inorganic nitride particles of the invention, the polarity term of surface energy of the inorganic nitride particles is less than 1mN / m, to obtain a light including ultraviolet rays having a wavelength of 150-400nm is irradiated 100mJ / cm2 or more.