发明名称 |
Method and device for refreshing reference cells |
摘要 |
Reference cells are refreshed in a non-volatile memory that includes a plurality of memory cells. A selected reference cell and a non-used memory cell are read simultaneously, and a signal read from the reference cell is compared to a signal read from the non-used memory cell. A refresh signal for refreshing the reference cell is supplied when the signal read therefrom is less than the signal read from the non-used memory cell.
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申请公布号 |
US2002159308(A1) |
申请公布日期 |
2002.10.31 |
申请号 |
US20020062271 |
申请日期 |
2002.02.01 |
申请人 |
STMICROELECTRONICS S.A. |
发明人 |
FOURNEL RICHARD;AITOUARAB LEILA SEDJAI |
分类号 |
G01R31/28;G11C16/02;G11C16/04;G11C16/06;G11C16/34;G11C29/12;(IPC1-7):G11C7/00 |
主分类号 |
G01R31/28 |
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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