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:
Oct. 29, 2013
Filed:
Jun. 25, 2012
Kazuhiro Morishita, Tokyo, JP;
Masuo Koga, Fukuoka, JP;
Yukimasa Hayashida, Fukuoka, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A power semiconductor device module includes: a base plate; an insulating substrate mounted on the base plate; and a diode chip mounted on the insulating substrate, wherein the insulating substrate has an upper surface electrode layer disposed on an upper main surface and a lower surface electrode layer disposed on a lower main surface, the diode chip is joined onto the upper surface electrode layer, the lower surface electrode layer is joined onto the upper main surface of the base plate, and a thermal resistance reducing section that reduces thermal resistance is provided in lower surface electrode layer or the base plate of a portion corresponding to a place immediately below the diode chip.