Invention Grant
- Patent Title: Read disturbance management in a non-volatile memory system
- Patent Title (中): 在非易失性存储器系统中读取扰动管理
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Application No.: US12022146Application Date: 2008-01-29
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Publication No.: US07937521B2Publication Date: 2011-05-03
- Inventor: Robert Alan Reid
- Applicant: Robert Alan Reid
- Applicant Address: US CA San Jose
- Assignee: Cadence Design Systems, Inc.
- Current Assignee: Cadence Design Systems, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Patent Venture Group
- Agent Jon A. Brock, II
- Main IPC: G06F12/00
- IPC: G06F12/00

Abstract:
An invention is provided for read disturbance management in a non-volatile memory. The invention includes storing a read count data for a memory location in non-volatile memory. The read count data indicating an amount of read operations accessing the memory location since data was last written to the memory location. Then, when data is read from the memory location while the value of the read count data is less than a predetermined threshold value, the value of the read count data is incremented. However, when the value of the read count data equals the predetermined threshold value, the data is moved to a new memory location, thereby avoiding read disturbance effects.
Public/Granted literature
- US20090193174A1 READ DISTURBANCE MANAGEMENT IN A NON-VOLATILE MEMORY SYSTEM Public/Granted day:2009-07-30
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