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. 21, 2014
Filed:
Mar. 22, 2012
Applicants:
Akira Ide, Tokyo, JP;
Koji Torii, Tokyo, JP;
Inventors:
Akira Ide, Tokyo, JP;
Koji Torii, Tokyo, JP;
Assignee:
Elpida Memory, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/469 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor device includes a semiconductor substrate; and a through electrode that penetrates the semiconductor substrate. The semiconductor substrate has a groove structure that is positioned between a peripheral edge of the semiconductor substrate and the through electrode.