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. 23, 2012
Filed:
Apr. 01, 2011
Katsunori Azuma, Hitachi, JP;
Katsunori Azuma, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a power semiconductor module, a semiconductor device including electrode surfaces for connection on its front side and back side is connected on its back side to a first extraction electrode through soldering; a metal surface of one side of a laminated conductor having a laminated structure in which at least two types of metals are laminated is directly, intermetallically connected to the front side of the semiconductor device; a second extraction electrode is connected to a metal surface of another side of the laminated conductor through soldering; and the laminated conductor includes a plurality of arch-like protrusions and a straight section connecting the arch-like protrusions, the straight section is connected with the front side of the semiconductor device, and the protrusions are connected with the second extraction electrode.