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. 30, 2007
Filed:
Jul. 12, 2005
Kiyoshi Araki, Ann Arbor, MI (US);
Masahiro Kida, Nagoya, JP;
Takahiro Ishikawa, Nagoya, JP;
Yuki Bessyo, Nishikasugai-gun, JP;
Takuma Makino, Kasugai, JP;
Kiyoshi Araki, Ann Arbor, MI (US);
Masahiro Kida, Nagoya, JP;
Takahiro Ishikawa, Nagoya, JP;
Yuki Bessyo, Nishikasugai-gun, JP;
Takuma Makino, Kasugai, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A laminated radiation member includes a radiation plate, an insulation substrate bonded to the upper surface of the radiation plate and an electrode provided on the upper surface of the insulation substrate. The laminated radiation member is made by a method including the steps of surface treating a bonding surface of the radiation plate and/or the insulation substrate, interposing ceramic particles surface treated to assure wettability with a hard solder or a metal between the radiation plate and the insulation substrate, disposing a hard solder above and/or below the ceramic particles, heating the hard solder to a temperature higher than the melting point of the solder, penetrating the molten hard solder into spaces between the ceramic particles to react the ceramic particles with the solder to produce a metal base composite material, and bonding the radiation plate and the insulation substrate with the metal base composite material.