| 摘要 |
PROBLEM TO BE SOLVED: To provide a dimple plate and a method of manufacturing the same, and a heat radiation plate and a method of manufacturing the same, enhancing heat conductivity in a thickness direction of a heat radiation plate, of uniformly maintaining heat radiation characteristics in the thickness direction of the heat radiation plate independent of a part of the heat radiation plate, and achieving a heat radiation plate with a large Invar ratio and a low thermal expansion coefficient in a plate surface direction. SOLUTION: A dimple plate 1 has a plurality of dimples 2 formed on a surface of a flat plate 5 in a longitudinal direction and a width direction of the flat plate 5 in a predetermined pitch. In the dimple plate 1, the pitch in a width direction of the dimple 2 is equal to or less than 0.5 mm, and a ratio of an area of a region in which a hole 3 penetrating the flat plate 5 in the bottom part of the dimple 2 is formed, to the superficial area of the flat plate 5, is equal to or less than 15%. COPYRIGHT: (C)2011,JPO&INPIT
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