| 摘要 |
PROBLEM TO BE SOLVED: To provide a composite dielectric substrate and prepreg therefor, comprising at least a resin and a glass cloth, increased in the dielectric constant of the prepreg, capable of miniaturizing and lightening substrates and electronic components and capable of miniaturizing built-in capacitors. SOLUTION: The prepreg and the substrate each has a structure comprising at least a resin, dielectric powder dispersed in the resin and a glass cloth, wherein the dielectric constant of the mixture of the resin and the dielectric powder is larger than the dielectric constant of the glass cloth and the glass cloth has <=60 g/m2 cloth weight and >=200 cm3/cm2/s air permeability. |
