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:
Apr. 08, 2014
Filed:
Jan. 10, 2012
Applicant:
Junichi Hayashi, Tokyo, JP;
Inventor:
Junichi Hayashi, Tokyo, JP;
Assignee:
Elpida Memory, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 8/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Such a device is disclosed that includes a first chip outputting a bank address signal and an active signal, and a plurality of second chips stacked on the first chip. Each of the second chips includes a plurality of memory banks each selected based on the bank address signal. Selected one or ones of the memory banks is brought into an active state in response to the active signal. Each of the second chips activates a local bank active signal when at least one of the memory banks included therein is in the active state. The first chip activates a bank active signal when at least one of the local bank active signals is activated.