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:
May. 31, 2016

Filed:

May. 11, 2015
Applicant:

SK Hynix Inc., Gyeonggi-do, KR;

Inventor:

Young Gyun Kim, Seoul, KR;

Assignee:

SK Hynix Inc., Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 8/12 (2006.01); G11C 11/56 (2006.01); G11C 7/10 (2006.01); G11C 16/10 (2006.01);
U.S. Cl.
CPC ...
G11C 11/5628 (2013.01); G11C 11/5642 (2013.01); G11C 7/1021 (2013.01); G11C 8/12 (2013.01); G11C 16/10 (2013.01);
Abstract

A memory system and a method of operating the same are provided. The method includes reading least significant bit (LSB) data of a first physical page based on a first pre-read voltage and performing a most significant bit (MSB) program based on the LSB data of the first physical page when the MSB program is performed on the first physical page, defining a management area by comparing the number of error bits included in MSB data of the first physical page with a first threshold value, preforming an LSB program on a second physical page of the management area, reading LSB data of the second physical page based on a second pre-read voltage, which is lower than the first pre-read voltage, and performing the MSB program on the second physical page based on the LSB data of the second physical page.


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