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:
Jan. 22, 2008
Filed:
Jul. 08, 2004
Yutaka Kagaya, Hachimori, JP;
Keiyo Kusanagi, Akita, JP;
Koya Kikuchi, Kawabe, JP;
Akihiko Hatasawa, Akita, JP;
Yutaka Kagaya, Hachimori, JP;
Keiyo Kusanagi, Akita, JP;
Koya Kikuchi, Kawabe, JP;
Akihiko Hatasawa, Akita, JP;
Elpida Memory, Inc., Tokyo, JP;
Abstract
In a semiconductor device in which a plurality of substrates each mounting a semiconductor chip are stacked, one ends of the leads formed on the substrates are connected to the semiconductor chip and the other ends thereof are connected to connection terminals of the substrates. At least one of the leads are branched into two or more in the vicinity of the connection terminals, and one ends of the branched leads are connected to the connection terminals. A technique for sorting good products is performed in a state in which the chips are mounted on the substrates.