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:
Jul. 18, 2017
Filed:
May. 06, 2015
Applicant:
SK Hynix Inc., Gyeonggi-do, KR;
Inventor:
Hyung-Min Lee, Gyeonggi-do, KR;
Assignee:
SK Hynix Inc., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 5/14 (2006.01); G06F 11/10 (2006.01); G11C 11/56 (2006.01); G11C 29/04 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1072 (2013.01); G06F 11/1068 (2013.01); G11C 11/5642 (2013.01); G11C 2029/0411 (2013.01);
Abstract
An operation method of a semiconductor memory system includes performing a first error correction code (ECC) decoding on a first data stored in the semiconductor memory system, wherein the first data includes user data, an ECC data for the user data and a status data for the user data; and performing a second ECC decoding on the user data by changing a read voltage based on the status data of the first data when the first ECC decoding on the user data fails.