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:
Feb. 06, 2024
Filed:
Oct. 06, 2021
Applicant:
Western Digital Technologies, Inc., San Jose, CA (US);
Inventors:
Daniel J. Linnen, Naperville, IL (US);
Prakash Subedi, San Jose, CA (US);
Khanfer A. Kukkady, San Jose, CA (US);
Mark Murin, Kfar Saba, IL;
Assignee:
Western Digital Technologies, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G06F 12/02 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0619 (2013.01); G06F 3/0604 (2013.01); G06F 3/0655 (2013.01); G06F 3/0679 (2013.01); G06F 12/0246 (2013.01);
Abstract
A storage system has a memory that is organized in wordlines. Each wordline has a number of strings. A controller in the storage system changes, in each of the wordlines, which of the strings is a last string programmed. Doing so can unmask a program disturb error when triple-level cells in the memory are used as pseudo-multi-level cells. By unmasking the program disturb error, the controller can detect and correct the error.