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:
Oct. 18, 2022

Filed:

Jan. 14, 2021
Applicant:

Sandisk Technologies Llc, Addison, TX (US);

Inventors:

Abu Naser Zainuddin, Milpitas, CA (US);

Dongxiang Liao, Sunnyvale, CA (US);

Jiahui Yuan, Fremont, CA (US);

Assignee:

SanDisk Technologies LLC, Addison, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/04 (2006.01); G11C 16/10 (2006.01); G11C 16/08 (2006.01); G11C 11/56 (2006.01); G11C 16/34 (2006.01); H01L 27/11565 (2017.01); H01L 27/11582 (2017.01);
U.S. Cl.
CPC ...
G11C 16/10 (2013.01); G11C 11/5671 (2013.01); G11C 16/0483 (2013.01); G11C 16/08 (2013.01); G11C 16/3459 (2013.01); H01L 27/11565 (2013.01); H01L 27/11582 (2013.01);
Abstract

Apparatuses and techniques are described for optimizing programming in a memory device in which memory cells can be programmed using single bit per cell programming and multiple bits per cell programming. In one aspect, a single bit per cell program operation is performed which reduces damage to the memory cells as well as reducing program time. The program operation can omit a pre-charge phase and a verify phase of an initial program loop of a program operation. Instead, a program phase is performed followed by a recovery phase. In one or more subsequent program loops of the single bit per cell program operation, as well as in each program loop of a multiple bit per cell program operation, the program loop includes a pre-charge phase, a program phase, a recovery phase and a verify phase.


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