Invention Grant
- Patent Title: Non-volatile storage with failure prediction
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Application No.: US15679025Application Date: 2017-08-16
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Publication No.: US10346232B2Publication Date: 2019-07-09
- Inventor: Arthur Shulkin , David Rozman , Tomer Eliash
- Applicant: WESTERN DIGITAL TECHNOLOGIES, INC.
- Applicant Address: US CA San Jose
- Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
- Current Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
- Current Assignee Address: US CA San Jose
- Agency: Vierra Magen Marcus LLP
- Main IPC: G06F11/00
- IPC: G06F11/00 ; G06F11/07 ; G11C13/00

Abstract:
A non-volatile storage apparatus includes a set of non-volatile memory cells and one or more control circuits in communication with the set of non-volatile memory cells, the one or more control circuits are configured to collect failure bit counts (FBCs) for data read from the set of non-volatile memory cells, obtain one or more metrics of a cumulative distribution of the FBCs, calculate an indicator from the one or more metrics of the cumulative distribution of the FBCs and a target FBC, obtain a probability for the target FBC from the indicator, and manage at least one of: garbage collection, wear leveling, and read threshold voltage adjustment of the set of non-volatile memory cells according to the probability for the target FBC.
Public/Granted literature
- US20190056981A1 NON-VOLATILE STORAGE WITH FAILURE PREDICTION Public/Granted day:2019-02-21
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