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:
Aug. 27, 2013
Filed:
Jul. 08, 2010
Applicants:
Dong-hyuk Lee, Seoul, KR;
Jung-bae Lee, Yongin-si, KR;
Ki-won Park, Seoul, KR;
Inventors:
Assignee:
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A memory device identifies memory blocks that contain substandard memory cells. The memory device then determines row address codes to apply to the memory blocks during refresh operations. The row address codes determine which memory blocks of the memory block are refreshed together. The row address codes are designed to ensure that memory blocks having substandard memory cells, which must be refreshed more frequently than other cells, are refreshed together, while memory blocks without substandard memory cells are refreshed together.