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:
Jun. 22, 2021

Filed:

Aug. 31, 2018
Applicant:

Toshiba Memory Corporation, Tokyo, JP;

Inventors:

Takayuki Itoh, Kanagawa, JP;

Tomoya Kodama, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/26 (2006.01); G11C 16/04 (2006.01); G11C 11/56 (2006.01); G06F 3/06 (2006.01); H01L 29/792 (2006.01);
U.S. Cl.
CPC ...
G11C 16/26 (2013.01); G06F 3/0617 (2013.01); G06F 3/0658 (2013.01); G06F 3/0679 (2013.01); G11C 11/5671 (2013.01); G11C 16/0483 (2013.01); H01L 29/7923 (2013.01);
Abstract

According to one embodiment, a memory system includes a nonvolatile memory and a memory controller. The nonvolatile memory includes a first word line including a plurality of first cells and a second word line adjacent to the first word line and including a plurality of second cells. The memory controller determines a read voltage to be used with respect to the plurality of the first cells, according to a plurality of adjacent voltages representing respective threshold voltages of the plurality of the second cells. The memory controller reads data from the first word line using a plurality of determined read voltages.


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