thermally conductive sheet

Abstract

The present invention is made in view of the above circumstances, and aims to provide a sheet that can be continuously manufactured and rolled into a roll by coating forming, and has high thermal conductivity and good uniformity of in-plane insulation strength. A thermally conductive sheet comprises a glass cloth filled with a thermally conductive resin composition, and a hardened layer of a thermally conductive silicone composition deposited on both or one side of the glass cloth. In the thermally conductive sheet, the thermally conductive silicone composition comprises a silicone component and a thermally conductive filler (C), wherein the amount of the thermally conductive filler is 700 to 1,100 parts by mass relative to 100 parts by mass of the total silicone component, and the thermally conductive filler (C) has an average particle size of less than 15 μm, the amount of particles with a primary particle size of 45 μm or more is 0% to 3% by mass, and the amount of particles with a primary particle size of 75 μm or more is 0% to 0.01% by mass.