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.

Date of Patent:
Jul. 16, 2024

Filed:

Jan. 18, 2023
Applicant:

SK Hynix Inc., Gyeonggi-do, KR;

Inventors:

Fan Zhang, San Jose, CA (US);

Meysam Asadi, San Jose, CA (US);

Assignee:

SK hynix Inc., Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 29/00 (2006.01); G06F 11/07 (2006.01); G06F 11/10 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1048 (2013.01); G06F 11/076 (2013.01); G06F 11/1076 (2013.01);
Abstract

A memory system for detecting hard errors. The memory system has a first memory block and a second memory block and a memory controller in communication with the first memory block, The memory controller includes a hard error tracker module comprising hardware configured to track over time fail bit counts from data read from the first memory block and includes a hard error percentage module programmed to determine, based on the fail bit counts, hard error percentages for the data read from the first memory block. The hard error percentage module is programmed to dynamically reorder historical read retry (HRR) entries for subsequent data reads, based on a page type of the data being read and the hard error percentages determined during reading of data from the memory block.


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