Hollow laminate and heat sink using the same
OwnerKinji Saijo, Tsuguo Kawamura +3inventors
InventorsKinji Saijo, Tsuguo Kawamura, Shinji Ohsawa, Hiroaki Okamoto, Kazuo Yoshida
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Abstract
A hollow laminate which is prepared by forming hollow portions of a predetermined shape on opposed faces of a plurality of metal plates, subjecting the joining faces of the metal plates to an activation treatment under an extremely reduced pressure, and then laminating the metal plates having hollow portions and joining them by cold pressure welding; and a heat sink which is prepared by enclosing water as a heat radiating hydraulic fluid in the hollow portion of the hollow laminate
Claims9
A hollow laminate fabricated by laminating and bonding a plurality of metal plates with forming a hollow portion of a predetermined shape on the opposite faces of the neighboring metal plates, which is characterized in that the bonding faces of the metal plates are previously activated in a vacuum chamber and thereafter the metal plates are laminated and bonded in such a manner that their activated faces are opposite to each other and are bonded by cold pressure welding.
Dependencies are inferred from the claim text.