发明名称 |
Preservation circuit and methods to maintain values representing data in one or more layers of memory |
摘要 |
Circuitry and methods for restoring data in memory are disclosed. The memory may include at least one layer of a non-volatile two-terminal cross-point array that includes a plurality of two-terminal memory elements that store data as a plurality of conductivity profiles and retain stored data in the absence of power. Over a period of time, logic values indicative of the stored data may drift such that if the logic values are not restored, the stored data may become corrupted. At least a portion of each memory may have data rewritten or restored by circuitry electrically coupled with the memory. Other circuitry may be used to determine a schedule for performing restore operations to the memory and the restore operations may be triggered by an internal or an external signal or event. The circuitry may be positioned in a logic layer and the memory may be fabricated over the logic layer.
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申请公布号 |
US2011188291(A1) |
申请公布日期 |
2011.08.04 |
申请号 |
US20110932637 |
申请日期 |
2011.03.01 |
申请人 |
UNITY SEMICONDUCTOR CORPORATION |
发明人 |
CHEVALLIER CHRISTOPHE;NORMAN ROBERT |
分类号 |
G11C11/00 |
主分类号 |
G11C11/00 |
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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