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. 10, 2024

Filed:

Jul. 26, 2022
Applicant:

Sandisk Technologies Llc, Addison, TX (US);

Inventors:

Yi Song, San Jose, CA (US);

Lito De La Rama, San Jose, CA (US);

Xiaochen Zhu, Milpitas, CA (US);

Assignee:

SanDisk Technologies LLC, Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/00 (2006.01); G11C 16/04 (2006.01); G11C 16/16 (2006.01); G11C 16/34 (2006.01);
U.S. Cl.
CPC ...
G11C 16/3445 (2013.01); G11C 16/0483 (2013.01); G11C 16/16 (2013.01);
Abstract

An erase process for a group of non-volatile memory cells comprises applying doses of erasing to the group and performing erase verify between pairs of successive doses of erasing. The time needed to complete the erase process can be reduced by optimizing the order of performing erase verify. For example, erase verify can be performed by separately performing erase verify for multiple portions of the group in order from previously determined slowest erasing portion of the group to previously determined fastest erasing portion of the group, and aborting the performing of erase verify prior to completion of erase verify for all of the portions of the group in response to a number erase errors exceeding a limit.


Find Patent Forward Citations

Loading…