| abstract |
(57) [Summary] [Objective] To provide an epoxy resin composition having a good molding workability and a small thermal expansion coefficient. [Composition] In a resin composition in which a filler is mixed with an epoxy resin, the filler is fused silica powder obtained by melting quartz powder into a spherical shape, the particle size of which is 100 μm or less, and the particle size distribution is the RRS particle size line. An epoxy resin composition which is a straight line when displayed in the figure, has a gradient n value of 0.6 to 0.95, and has a compounding amount of 80% by weight or more based on the whole. |