发明名称 |
Intelligent refreshing method and apparatus for increasing multi-level non-volatile memory charge retention reliability |
摘要 |
<p>An intelligent refreshing method and apparatus for increasing multi-level non-volatile memory charge retention reliability is described. In one embodiment, the apparatus comprises a circuit that is coupled to a multi-level memory cell and a sensing circuit. The sensing circuit senses a voltage of the memory cell and provides a digital value in response thereto. The circuit includes a selection circuit that receives the digital value and at least one trigger voltage, and provides an output trigger voltage responsive to the digital value. The circuit further includes a comparator having a first terminal coupled to receive the output trigger voltage, a second terminal coupled to receive the memory cell voltage, and an output terminal.</p> |
申请公布号 |
EP0992997(A1) |
申请公布日期 |
2000.04.12 |
申请号 |
EP19990307071 |
申请日期 |
1999.09.06 |
申请人 |
INFORMATION STORAGE DEVICES, INC. |
发明人 |
WANG, HAI |
分类号 |
G11C16/02;G11C11/56;G11C16/34;(IPC1-7):G11C11/56 |
主分类号 |
G11C16/02 |
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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