Invention Grant
US09146821B2 Methods and systems for monitoring write operations of non-volatile memory
有权
用于监视非易失性存储器的写入操作的方法和系统
- Patent Title: Methods and systems for monitoring write operations of non-volatile memory
- Patent Title (中): 用于监视非易失性存储器的写入操作的方法和系统
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Application No.: US14267277Application Date: 2014-05-01
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Publication No.: US09146821B2Publication Date: 2015-09-29
- Inventor: Matthew J. Byom , Nir J. Wakrat
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: APPLE INC.
- Current Assignee: APPLE INC.
- Current Assignee Address: US CA Cupertino
- Agency: Van Court & Aldridge LLP
- Main IPC: G06F11/00
- IPC: G06F11/00 ; G06F11/20 ; G06F11/07 ; G06F12/02

Abstract:
Systems and methods are disclosed for monitoring the time it takes to perform a write operation, and based on the time it takes, a determination is made whether to retire a block that is a recipient of the write operation. The time duration of the write operation for a page or a combination of pages may indicate whether any block or blocks containing the page or combination of pages is experiencing a physical failure. That is, if the time duration of the write operation for a particular page exceeds time threshold, this may indicate that this page requires a larger number of program cycles than other pages. The longer programming cycle can be an indication of cell leakage or a failing block.
Public/Granted literature
- US20140245084A1 METHODS AND SYSTEMS FOR MONITORING WRITE OPERATIONS OF NON-VOLATILE MEMORY Public/Granted day:2014-08-28
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