| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electromagnetic wave-suppressing heat-radiating sheet having a high magnetic permeability, a low hardness and a high thermal conductivity and for being interposed between a CPU or the like and a heat radiator. <P>SOLUTION: This electromagnetic wave-suppressing heat-radiating sheet is an electromagnetic wave-suppressing heat-radiating sheet 10 in which on both upper and lower surfaces of a thin plate-shaped ferrite sintered compact 12, a gel heat radiating layer having slight adherence and having a thermal conductivity of 0.7 W/mK or more is provided and both of these gel heat radiating layers are gel sheets 14, 16. It is also satisfactory that one of the gel heat radiating layers is a gel sheet and another thereof is a gel coating film. It is preferred to have a structure in which the gel heat radiating layer includes a one size larger size than that of the ferrite sintered compact in both longitudinal size and transverse size, and to the outer circumference of the ferrite sintered compact, the upper and lower gel heat radiating layers are directly or indirectly joined, so that the ferrite sintered compact is surrounded by the upper and lower gel heat radiating layers. In addition, the ferrite sintered compact is desirably a ferrite sintered compact in which ferrite chips having a size of 1 mm square to 5 mm square are aligned in a reticular pattern. <P>COPYRIGHT: (C)2010,JPO&INPIT |
