The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 27, 2009
Filed:
Mar. 29, 2007
Kazutaka Okamoto, Hitachi, JP;
Masayuki Doi, Hitachinaka, JP;
Hisanori Okamura, Tokai, JP;
Yasuhisa Aono, Hitachi, JP;
Manabu Kagawa, Ishioka, JP;
Satoshi Hirano, Hitachi, JP;
Kinya Aota, Hitachi, JP;
Kazutaka Okamoto, Hitachi, JP;
Masayuki Doi, Hitachinaka, JP;
Hisanori Okamura, Tokai, JP;
Yasuhisa Aono, Hitachi, JP;
Manabu Kagawa, Ishioka, JP;
Satoshi Hirano, Hitachi, JP;
Kinya Aota, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
HItachi Cable, Ltd., Tokyo, JP;
Abstract
The present invention is a cooling plate including a groove, which becomes a passage of a coolant, inside a body, wherein one or more fins are provided inside the groove, wherein the groove is covered with a lid having width larger than the groove, wherein the lid is joined to the body by friction stir welding, and wherein a weld bead formed by: the joining is outside the passage, and the weld bead formed by the joining is formed within the body and further, is characterized by a manufacturing method of a cooling plate that has a first groove, which becomes a passage of a coolant, and a second groove, which has width larger than the first groove and receives a lid on the first groove, inside a body, receives the lid on the second groove, and is joined to the body, the manufacturing method of a cooling plate wherein, while the lid and the body are joined together by the friction stir welding owing to insertion of a-rotation tool having a shoulder and a pin, the joining is performed so that a weld bead formed by the joining may become out of the passage, and furthermore, is characterized in that a target for sputtering is joined to the cooling plate.