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:
Dec. 16, 2025
Filed:
Jul. 25, 2023
Sandisk Technologies, Inc., Milpitas, CA (US);
Shabtay Yudkovich, Nes Ziona, IL;
David Avraham, Even-Yehuda, IL;
Mahim Raj Gupta, Milpitas, CA (US);
Sandisk Technologies, Inc., Milpitas, CA (US);
Abstract
Technology is disclosed herein for memory health monitoring and mitigation based on decoding statistics. Decoding a frame results in a decoding metric (syndrome weight, fail bit count) for that frame. The system tracks a statistic for different sets of frames. The statistic for a set is based on the decoding metrics for that set. The frames may be assigned to sets based on read reference voltages used to read frames or the physical location of the memory cells that store the frames. Memory health mitigation may be performed based on the decoding statistics. One example mitigation is to modify the read reference voltages for the set. Another example mitigation is to trigger reading at soft bit reference levels for a block. Another example mitigation is to trigger direct look ahead reading for a block. Still another example mitigation is to add a block to list of candidates for data refresh.