Invention Grant
- Patent Title: Read disturb scorecard
- Patent Title (中): 阅读打扰记分卡
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Application No.: US12847769Application Date: 2010-07-30
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Publication No.: US08503257B2Publication Date: 2013-08-06
- Inventor: Daniel J. Post , Hsiao Thio
- Applicant: Daniel J. Post , Hsiao Thio
- 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: G11C7/00
- IPC: G11C7/00

Abstract:
Systems and methods are disclosed for handling read disturbs based on one or more characteristics of read operations performed on a non-volatile memory (“NVM”). In some embodiments, a control circuitry of a system can generate a variable damage value determined based on one or more characteristics of a read operation. Using the damage value, the control circuitry can update a score associated with the block. If the control circuitry determines that the score exceeds a pre-determined threshold, at least a portion of the block can be relocated to a different memory location in the NVM. In some embodiments, portions of the block may be relocated over a period of time.
Public/Granted literature
- US20120030506A1 READ DISTURB SCORECARD Public/Granted day:2012-02-02
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