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:
Aug. 05, 2025

Filed:

Jun. 04, 2024
Applicant:

Sandisk Technologies, Inc., Milpitas, CA (US);

Inventors:

Meer Afroz Mohammed, Bengaluru, IN;

Pawan Negi, Bengaluru, IN;

Bhavadip Solanki, Bengaluru, IN;

Assignee:

Sandisk Technologies, Inc., Milpitas, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0659 (2013.01); G06F 3/0614 (2013.01); G06F 3/0631 (2013.01); G06F 3/065 (2013.01); G06F 3/0679 (2013.01);
Abstract

Different pages of a quad-level cell (QLC) memory can have different data retention characteristics. A controller of a data storage device can store selected data in relatively-lower data retention pages of the QLC block. For example, data for an internal data storage device operation can be stored in the relatively-lower data retention pages of QLC memory, and host data can be stored in the relatively-higher data retention pages of QLC memory. Other examples are provided.


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