发明名称 |
On chip dynamic read for non-volatile storage |
摘要 |
Dynamically determining read levels on chip (e.g., memory die) is disclosed herein. One method comprises reading a group of non-volatile storage elements on a memory die at a first set of read levels. Results of the two most recent of the read levels are stored on the memory die. A count of how many of the non-volatile storage elements in the group showed a different result between the reads for the two most recent read levels is determined. The determining is performed on the memory die using the results stored on the memory die. A dynamic read level is determined for distinguishing between a first pair of adjacent data states of the plurality of data states based on the read level when the count reaches a pre-determined criterion. Note that the read level may be dynamically determined on the memory die.
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申请公布号 |
US8576624(B2) |
申请公布日期 |
2013.11.05 |
申请号 |
US201313759700 |
申请日期 |
2013.02.05 |
申请人 |
SANDISK TECHNOLOGIES INC.;SANDISK TECHNOLOGIES, INC. |
发明人 |
DUTTA DEEPANSHU;LEE DANA;LUTZE JEFFREY |
分类号 |
G11C11/34;G11C16/04;G11C16/06 |
主分类号 |
G11C11/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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