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.
Patent No.:
Date of Patent:
Jan. 20, 2026
Filed:
Jul. 29, 2023
Applicant:
Western Digital Technologies, Inc., San Jose, CA (US);
Inventors:
Abhijith Prakash, Milpitas, CA (US);
Jiahui Yuan, Fremont, CA (US);
Xiang Yang, Santa Clara, CA (US);
Assignee:
Sandisk Technologies, Inc., Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 29/18 (2006.01); G11C 29/46 (2006.01); G11C 29/12 (2006.01);
U.S. Cl.
CPC ...
G11C 29/46 (2013.01); G11C 29/18 (2013.01); G11C 2029/1202 (2013.01);
Abstract
Multiple non-volatile memory dies are tested to identify word lines that have a first reliability and word lines that have a second reliability. Word lines that have the first reliability are designated to store data at a first number of bits per memory cell. Word lines that have the second reliability are designated to store data at a second number of bits per memory cell. The second number of bits per memory cell include more bits per memory cell than the first number of bits per memory cell.