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:
Sep. 19, 2017

Filed:

May. 15, 2015
Applicant:

Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-Do, KR;

Inventors:

Seonghyeog Choi, Gyeonggi-do, KR;

Changkyu Seol, Gyeonggi-do, KR;

Junjin Kong, Gyeonggi-do, KR;

Youngsuk Ra, Seoul, KR;

Hong Rak Son, Gyeonggi-do, KR;

Assignee:

SAMSUNG ELECTRONICS CO., LTD., Suwon-si, Gyeonggi-Do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 5/14 (2006.01); G11C 11/56 (2006.01); G11C 16/26 (2006.01); G06F 11/10 (2006.01); G11C 29/02 (2006.01); G11C 29/26 (2006.01); G11C 29/04 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1048 (2013.01); G11C 11/5642 (2013.01); G11C 29/021 (2013.01); G11C 29/028 (2013.01); G11C 29/26 (2013.01); G11C 2029/0411 (2013.01);
Abstract

A default read operation is performed on a page using a default read voltage set to generate default raw data. If error bits of the default raw data are not corrected, a plurality of low-level read operations is performed on the page using a plurality of read voltage sets to generate a plurality of low-level raw data. Each read voltage set is different from the default voltage set. A read voltage set is selected from the plurality of read voltage sets as a starting voltage set, according to each low-level raw data. A high-level read operation using the selected starting voltage set is performed on the page to generate high-level raw data.


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