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:
Aug. 03, 2010
Filed:
Sep. 03, 2008
Hiroshi Yoshida, Chiyoda-ku, JP;
Tatsuo Ota, Chiyoda-ku, JP;
Nobutake Taniguchi, Chiyoda-ku, JP;
Shingo Sudo, Chiyoda-ku, JP;
Hiroshi Yoshida, Chiyoda-ku, JP;
Tatsuo Ota, Chiyoda-ku, JP;
Nobutake Taniguchi, Chiyoda-ku, JP;
Shingo Sudo, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A semiconductor device has a substrate, a semiconductor element, an electrode lead, and a sealing resin portion. The substrate has a main surface on which a circuit pattern is formed. The semiconductor element has first and second surfaces, and is arranged on the substrate such that the first surface faces the main surface. The electrode lead has one end joined to the circuit pattern and the other end joined by soldering to the second surface. The other end has a plurality of portions divided from each other. The sealing resin portion seals the semiconductor element and the electrode lead. Thus, there can be provided a semiconductor device that has relieved thermal stress at a joining portion of the electrode lead, and therefore is less subject to fatigue failure.