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:
May. 17, 2016
Filed:
Oct. 17, 2014
Applicant:
SK Hynix Inc., Incheon-si Gyeonggi-do, KR;
Inventors:
Seong Hun Park, Cheongju-si, KR;
Jae Won Cha, Icheon-si, KR;
Assignee:
SK hynix Inc., Icheon-si, Gyeonggi-do, unknown;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/34 (2006.01); G11C 16/16 (2006.01); G11C 16/02 (2006.01); G11C 11/56 (2006.01); G11C 16/04 (2006.01); G11C 16/14 (2006.01); G11C 16/26 (2006.01);
U.S. Cl.
CPC ...
G11C 16/16 (2013.01); G11C 11/5642 (2013.01); G11C 16/02 (2013.01); G11C 16/0483 (2013.01); G11C 16/14 (2013.01); G11C 16/26 (2013.01);
Abstract
A semiconductor memory device comprises a memory cell array including a plurality of memory blocks each including a plurality of pages, wherein each of the plurality of pages includes at least one flag cell indicating whether data is in a corresponding page, and a peripheral circuit configured to read data of flag cells of a selected memory block in response to an erase request and to omit an erase operation on the selected memory block based on the data of the flag cells.