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:
Nov. 02, 2021
Filed:
Feb. 26, 2019
Applicant:
SK Hynix Inc., Gyeonggi-do, KR;
Inventor:
Yeong Dong Gim, Gyeonggi-do, KR;
Assignee:
SK hynix Inc., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 11/14 (2006.01); G06F 12/02 (2006.01); G11C 16/16 (2006.01); G11C 16/26 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1441 (2013.01); G06F 11/1417 (2013.01); G06F 12/0238 (2013.01); G11C 16/16 (2013.01); G11C 16/26 (2013.01); G11C 2216/22 (2013.01);
Abstract
An operation method of a memory system includes performing a first read operation on a word line corresponding to a read command, using a read voltage set including a first read voltage; performing a second read operation on the word line using a second read voltage greater than the first read voltage, depending on whether error correction on data read through the first read operation fails; and determining a memory block that includes a memory cell to which the word line is coupled as a closed memory block, depending on whether the word line is determined to be an erased word line as the result of the second read operation.