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:
Mar. 25, 2025
Filed:
Nov. 01, 2022
Applicant:
SK Hynix Inc., Icheon, KR;
Inventor:
Gi Bbeum Han, Icheon, KR;
Assignee:
SK Hynix Inc., Icheon, KR;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/07 (2006.01); G11C 29/02 (2006.01); G11C 29/08 (2006.01); G11C 29/44 (2006.01); G11C 29/52 (2006.01);
U.S. Cl.
CPC ...
G06F 11/076 (2013.01); G06F 11/073 (2013.01); G11C 29/025 (2013.01); G11C 29/08 (2013.01); G11C 29/44 (2013.01); G11C 29/52 (2013.01);
Abstract
A memory system and an operating method thereof perform word line verification by deactivating each of a plurality of word lines at the same time as initiating a bit line equalization, determine a fail bit count for each word line according to a number of bit flips that occurred during the word line verification, and determine a degraded word line on the basis of the fail bit counts of the plurality of word lines.