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:
Sep. 16, 2014
Filed:
Aug. 05, 2013
Shinko Electric Industries Co., Ltd., Nagano, JP;
Shinko Electric Industries Co., Ltd., Nagano-shi, Nagano, JP;
Abstract
There is provided a semiconductor device. The semiconductor device includes: a silicon substrate; a copper post connected to one surface of the silicon substrate; a semiconductor element having a linear expansion coefficient different from that of the silicon substrate; a metal layer provided between the semiconductor element and the silicon substrate to cover the copper post; a first alloy layer provided between the copper post and the semiconductor element, wherein the first alloy layer includes alloy of gold and a metal of the metal layer; and a second alloy layer provided between the metal layer and the semiconductor element, wherein the second alloy layer includes alloy of gold and the metal of the metal layer.