RESIN SHEET, METALLIC FOIL WITH RESIN, SUBSTRATE MATERIAL, AND COMPONENT-MOUNTING SUBSTRATE

摘要

PROBLEM TO BE SOLVED: To provide a heat-dissipating resin sheet that can efficiently dissipate heat from an electric component to the outside.

SOLUTION: The resin sheet has at least a resin and a resin layer that contains an oxide filler. The resin layer is filled with 70-90 vol.% of oxide filler and has surface roughness Ra of 0.1-5 μm. It is preferable that alumina is used as the oxide filler. The far-infrared emissivity of the resin sheet is 90% or more. The resin layer is used for a metallic foil with resin.

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