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:
Jan. 30, 2024

Filed:

Mar. 25, 2022
Applicant:

Yangtze Memory Technologies Co., Ltd., Hubei, CN;

Inventor:

Youxin He, Hubei, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/34 (2006.01); G06F 11/07 (2006.01); G11C 16/10 (2006.01); G11C 16/26 (2006.01);
U.S. Cl.
CPC ...
G11C 16/3459 (2013.01); G06F 11/076 (2013.01); G11C 16/102 (2013.01); G11C 16/26 (2013.01);
Abstract

The present disclosure provides a method of data protection for a NAND memory. The method can include programming a selected page of the NAND flash memory device according to programming data. The programming of the selected page can include a plurality of programming operations and a plurality of verifying operations, with ones of the plurality of verifying operations performed after corresponding ones of the plurality of programming operations to determine whether programmed memory cells of the selected page have threshold voltage levels according to the programming data. The method can also include determining a completion of the programming of the selected page based on each of the plurality of verification operations returning a pass result. The method can also include performing, after the determining, a read operation on the selected page by the NAND flash memory device to self-verify data stored at the selected page according to the programming data.


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