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. 06, 2017
Filed:
Jul. 17, 2015
Applicant:
SK Hynix Inc., Icheon-si, Gyeonggi-do, KR;
Inventor:
Jung Taek You, Icheon-si, KR;
Assignee:
SK hynix Inc., Icheon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01); G11C 11/406 (2006.01); G11C 11/408 (2006.01); G11C 7/08 (2006.01); G11C 11/4091 (2006.01); G11C 29/50 (2006.01);
U.S. Cl.
CPC ...
G11C 11/406 (2013.01); G11C 11/4085 (2013.01); G11C 11/4087 (2013.01); G11C 7/08 (2013.01); G11C 11/4091 (2013.01); G11C 29/50016 (2013.01);
Abstract
A semiconductor memory apparatus includes a plurality of cell arrays; and a use information storage block configured to determine whether a data write operation has already been performed for the plurality of cell arrays, and generate a plurality of control signals, wherein the semiconductor memory apparatus is configured to control a refresh operation for the plurality of cell arrays according to the plurality of control signals.