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:
Mar. 03, 2026

Filed:

Jan. 18, 2024
Applicant:

Sandisk Technologies Llc, Addison, TX (US);

Inventors:

Adam Jacobvitz, San Jose, CA (US);

Piyush Dhotre, San Jose, CA (US);

Niles Yang, San Jose, CA (US);

Juan Carlos Lee, San Jose, CA (US);

Eran Sharon, Rishon Lezion, IL;

Idan Goldenberg, Rishon Lezion, IL;

Zhenni Wan, San Jose, CA (US);

Assignee:

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

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11C 29/18 (2006.01); G11C 29/12 (2006.01); G11C 29/46 (2006.01);
U.S. Cl.
CPC ...
G11C 29/1201 (2013.01); G11C 29/18 (2013.01); G11C 29/46 (2013.01); G11C 2029/1802 (2013.01);
Abstract

A storage device may speed up error correction by pre-characterizing weak cell information in a memory device. The storage device includes a memory device with cells that may store multiple bits. A controller executes a pre-characterization operation on the memory device to identify a slow cell and/or a fast cell on the memory device. The controller retrieves weak cell information for the slow cell and/or the fast cell. The controller converts the weak cell information into values used by an error correction engine and provides the values to the error correction engine to be used in decoding information retrieved from the memory device.


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