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:
Jun. 06, 2017
Filed:
Sep. 10, 2015
Fuji Electric Co., Ltd., Kawasaki-shi, Kanagawa, JP;
Motohito Hori, Matsumoto, JP;
Yoshikazu Takahashi, Matsumoto, JP;
Yoshitaka Nishimura, Azumino, JP;
Yoshinari Ikeda, Matsumoto, JP;
Hiromichi Gohara, Matsumoto, JP;
FUJI ELECTRIC CO., LTD., Kawasaki-shi, JP;
Abstract
In a semiconductor device, an insulated substrate is bonded with a cooling body with lowered thermal resistance without a holding unit. The semiconductor device includes an insulated substrate where a wiring pattern copper plate unit for forming a plurality of wiring patterns is disposed on one side of an insulating plate unit, and a heat radiation copper plate unit disposed on the other side of the insulating plate unit; a semiconductor chip mounted on the wiring pattern copper plate unit; a cooling body contacted with the heat radiation copper plate unit; and a wiring conductor plate connected between the semiconductor chip and the wiring pattern copper plate unit. The heat radiation copper plate unit and the cooling body are bonded with a metal sintered material, and thicknesses of the wiring pattern copper plate unit and the heat radiation copper plate unit are set to such thermal stress is relaxed.