COMPOSITE DIELECTRIC MATERIAL, AND COMPACTING MATERIAL, COMPACTING POWDER MATERIAL, COATING MATERIAL, PREPREG AND SUBSTRATE ALL USING THE SAME

摘要

PROBLEM TO BE SOLVED: To obtain a composite dielectric material good in the dispersibility of grains, capable of easily obtaining desired characteristics and capable of attaining the thinning of electronic parts, or the like, and to obtain a compacting material, a compacting powder material, a coating material, a prepreg and a substrate all using the same. SOLUTION: This composite dielectric material is obtained by coating the whole or a part of the surfaces of spherical metallic grains 1 with the average grain size of 0.1 to 10μm with a dielectric layer 2 and dispersing the coated grains into a resin 10.