发明名称 |
Automatic refresh for improving data retention and endurance characteristics of an embedded non-volatile memory in a standard CMOS logic process |
摘要 |
A method for selectively refreshing data in a nonvolatile memory array based on failure type detected by an error correction code. If the page is determined to be error-free, no refresh operation takes place. Otherwise, if single-error words on a page contain erased and programmed bit errors, then a refresh operation, consisting of an erase and program, takes place. The erase operation is skipped if single-error words on a page solely contain a program failure. |
申请公布号 |
US8161355(B2) |
申请公布日期 |
2012.04.17 |
申请号 |
US20090378249 |
申请日期 |
2009.02.11 |
申请人 |
FUNG STEPHEN;RAO VITHAL;YU DA-GUANG;RUETZ J. ERIC;CHUA CHEE T.;CHEN JAWJI;RAO KAMESWARA K.;MOSYS, INC. |
发明人 |
FUNG STEPHEN;RAO VITHAL;YU DA-GUANG;RUETZ J. ERIC;CHUA CHEE T.;CHEN JAWJI;RAO KAMESWARA K. |
分类号 |
G11C29/00 |
主分类号 |
G11C29/00 |
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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