COOLING MEMBER

PROBLEM TO BE SOLVED: To provide a new cooling mechanism which is closely attached without forming a gap acting as a heat resistance on a body to be cooled, can immediately radiate the heat transmitted from the body to be cooled to a cooling medium, and has a high exhaust heat efficiency. SOLUTION: The cooling member 1 for cooling the body to be cooled 2 in contact therewith is composed of a porous body 3 whose at least side of surface contacting with the body to be cooled 2 has open holes, and the porous body 3 is elastically deformed to contact with the body to be cooled 2 without forming a gap, and a gas, such as an air, is passed into the open holes of the porous body 3 as a cooling medium to radiate it. Preferably, the porous body 3 of the cooling member 1 has a micro structure that many columns of diameter not more than 100 μm and of aspect ratio not less than 5 are located on a base material at a slant. COPYRIGHT: (C)2007,JPO&INPIT