| 摘要 |
PROBLEM TO BE SOLVED: To provide a means capable of obtaining an original heat conduction function over a long period by mechanically protecting a graphite member which is weak in strength. SOLUTION: A thermal diffusion member 11 includes a lower surface side heat conduction member 12 and an upper surface side heat conduction member 14 which form a closed gap k, and a graphite polymer 13 stored in the gap k. Since the graphite polymer weak in strength is covered with the heat conduction members in a heat conductive state, the graphite polymer is protected from external environments. COPYRIGHT: (C)2008,JPO&INPIT
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