Patent ID: 7723407
Filing Date: 2010-05-25
Classification: C08K,C08L,H01L,H05K,Y10T

Abstract:
1. A resin composition comprising a compound having at least one of a glycidyl group and/or an epoxy group and an inorganic microfine particle, the inorganic microfine particle containing 50 to 99.9 mol % of Si and 50 to 0.1 mol % of one or more element selected from the group consisting of Zn, B, Al, Ga, In, Ge, Pb, P, Sb and Bi, as constituent metal components, and as a particle size distribution, the inorganic microfine particle containing 50 to 80% by volume of particles having a particle size of 0.5 nm or more and less than 10 nm and 50 to 20% by volume of particles having a particle size of 10 nm or more and less than 100 nm, a solid compound at 25° C. being used as the compound having at least one of a glycidyl group and/or an epoxy group in the case where the compound having at least one of a glycidyl group and/or an epoxy group contains an aromatic moiety, and a solid or liquid compound at 25° C. being used as the compound having at least one of a glycidyl group and/or an epoxy group in the case where the compound having at least one of a glycidyl group and/or an epoxy group does not contain an aromatic moiety.