HEAT SINK AND MANUFACTURING METHOD OF THE SAME

PROBLEM TO BE SOLVED: To provide a heat sink which securely joins a spreader, which is a solid member, to multiple fins, which are porous members, with a simple structure.SOLUTION: A heat sink comprises: a spreader 10 that is a solid member; multiple fins 20 which have porous parts 21a, 22a and seal...

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Bibliographic Details
Main Authors NAKAMURA KENJI, YAMADA HIROSHI, NAKAJIMA HIDEO, IDE TAKUYA, NOMA NAOMUNE, SAITO TOMOYA
Format Patent
LanguageEnglish
Published 04.09.2014
Subjects
BASIC ELECTRIC ELEMENTS
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SEMICONDUCTOR DEVICES
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
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Summary:PROBLEM TO BE SOLVED: To provide a heat sink which securely joins a spreader, which is a solid member, to multiple fins, which are porous members, with a simple structure.SOLUTION: A heat sink comprises: a spreader 10 that is a solid member; multiple fins 20 which have porous parts 21a, 22a and seal processing parts 21b, 22b where seal processing is performed to the porous parts 21a, 22a and are joined to the spreader 10 at the seal processing parts 21b, 22b; and a joint region W between the spreader 10 and the seal processing parts 21b, 22b, the joint region W being formed by agitating a material that forms the seal processing parts 21b, 22b while pressing the material by a friction agitation joint tool 30.
Bibliography:Application Number: JP20130030199