发明授权
US09305663B2 Techniques for assessing pass/fail status of non-volatile memory
有权
评估非易失性存储器通过/失败状态的技术
- 专利标题: Techniques for assessing pass/fail status of non-volatile memory
- 专利标题(中): 评估非易失性存储器通过/失败状态的技术
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申请号: US14135663申请日: 2013-12-20
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公开(公告)号: US09305663B2公开(公告)日: 2016-04-05
- 发明人: Joshua Silberman , George Totolos , Richard Strong
- 申请人: NetApp, Inc.
- 申请人地址: US CA Sunnyvale
- 专利权人: NetApp, Inc.
- 当前专利权人: NetApp, Inc.
- 当前专利权人地址: US CA Sunnyvale
- 代理机构: LeClairRyan, a Professional Corporation
- 主分类号: G11C29/42
- IPC分类号: G11C29/42 ; G11C29/44 ; G11C29/04 ; G06F11/10
摘要:
Examples are disclosed for assessing pass/fail status of non-volatile memory. In some examples, information may be received to indicate a block having memory pages associated with non-volatile memory cells. The information may indicate at least some of the memory pages have bit errors in excess of an error correction code (ECC) ability to correct. For these examples, the block may be selected for read testing. Read testing may include programming the memory pages with a known pattern and waiting a period of time. Following the period of time each memory page may be read and if a resulting pattern read matches the known pattern programmed to each memory page, the memory page passes. The block may be taken offline if the number of passing memory pages is below a pass threshold number. Other examples are described and claimed.
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