Method for producing heat radiation member

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11919288
SERIAL NO

17468808

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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To provide a heat radiation member having high durability that can favorably retain the thermal conductivity under application of heat cycles, suitable for mounting a semiconductor element of a power module. The heat radiation member includes a laminated structure including metal materials 21 and 22 and a carbon material 10 having the following property (A) bonded to each other; (A) in pressurizing one principal surface of a plate specimen having a thickness of 11 mm of the carbon material with nitrogen gas of 200 kPa, the carbon material having a gas permeability of the nitrogen gas permeating to the other principal surface with a flow rate of 5 L/min or more and 30 L/min or less per 0.01 m2 in terms of area of the pressurized principal surface, the pressurized principal surface having an area of 0.005 m2 or more.

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Patent Owner(s)

Patent OwnerAddress
DOWA METALTECH CO LTDTOKYO JAPAN TOKYO METROPOLIS

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Osanai, Hideyo Tokyo, JP 39 223
Sugawara, Akira Tokyo, JP 114 1843

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