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:
Aug. 25, 2026
Filed:
Apr. 18, 2024
Sandisk Technologies, Inc., Milpitas, CA (US);
Parth Amin, Fremont, CA (US);
Jayavel Pachamuthu, San Jose, CA (US);
Sandisk Technologies, Inc., Milpitas, CA (US);
Abstract
Embodiments disclosed herein are directed to an apparatus including a control circuit connected to the word lines and bit lines. The control circuit is configured to: in response to transitioning from a first operating mode to a second operating mode, perform a check operation for identifying reliability issues on a set of word lines of a memory block; and in response to results of the check operation, determine if the block can be operated in the second operating mode. In the first operating mode, the set of the word lines are assigned as data word lines and are eligible to store user data and in the second operating mode, the set of the word lines are assigned as dummy word lines and ineligible to store user data.