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:
Jun. 12, 2012
Filed:
Jan. 26, 2010
Applicant:
Toshihiko Usami, Tokyo, JP;
Inventor:
Toshihiko Usami, Tokyo, JP;
Assignee:
Elpida Memory, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/556 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor device includes first to third semiconductor chips. The second semiconductor chip is stacked over the first semiconductor chip. The third semiconductor chip is stacked over the second semiconductor chip. The second semiconductor chip shields the first semiconductor chip from noises generated by the third semiconductor chip. The second semiconductor chip shields the third semiconductor chip from noises generated by the first semiconductor chip.