| 摘要 |
The invention provides a heat conductive sheet produced by pressing a sheet formed from a molded block composed of a heat conductive sheet-forming composition, wherein the heat conductive sheet-forming composition is prepared by dispersing a fibrous filler and a spherical filler in a binder resin, the fibrous filler is a carbon fiber having an average diameter of 8 to 12 µm and an aspect ratio of 2 to 50, the heat conductive sheet-forming composition contains 16 to 40% by volume of the fibrous filler and 30 to 60% by volume of the spherical filler, and a random orientation ratio of the fibrous filler in the molded block is controlled within a range of 55 to 95%, whereby a thermal resistance value (K·cm 2 /W) of the sheet before pressing that is formed from the molded block is in a range of 0.31 to 1.00. |
