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.

Date of Patent:
Sep. 09, 2014

Filed:

Sep. 13, 2012
Applicant:

Keun Kook Kim, Seoul, KR;

Inventor:

Keun Kook Kim, Seoul, KR;

Assignee:

SK Hynix Inc., Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A semiconductor memory device includes an all bank select signal generation block configured to receive level signals including information on at least one bank which has been refreshed, and generate all bank select signals, in response to an all bank refresh command; and a bank block including a plurality of banks which are configured to be refreshed in response to the all bank select signals or are refreshed in response to per bank select signals which are enabled when the level signals are enabled.


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