| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a low-cost thermal conductive sheet having high thermal conductivity, high heat resistance properties, and high electrical insulation properties. <P>SOLUTION: A heat conductive sheet comprises a conductive and thermally conductive filler 13 on a volume basis, an insulating and heat-conductive filler 23 on a volume basis at one side or both sides of a conductive heat-conductive resin layer 10 formed of a thermoplastic resin 11 of 10-90:90-10, and an insulating heat-conductive resin layer 20 formed of a thermoplastic resin 21 of 10-90:90-10. The conductive heat-conductive resin layer 10 and the insulating heat-conductive resin layer 20 are cross-linked by irradiation of electron rays. In the thermoplastic resin, a number G(x) of molecules connected by an absorption energy of 100 eV is not smaller than 1.0 and a thermal shrinkage ratio is not larger than 5%. <P>COPYRIGHT: (C)2011,JPO&INPIT |
