发明名称 |
Nonvolatile memory refresh |
摘要 |
A system and method of refreshing a nonvolatile memory having memory cells. The method includes identifying one or more of the memory cells that do not satisfy a data retention test; remapping the one or more identified memory cells from original memory addresses to spare memory addresses; and refreshing the identified memory cells. |
申请公布号 |
US9595354(B2) |
申请公布日期 |
2017.03.14 |
申请号 |
US201414570219 |
申请日期 |
2014.12.15 |
申请人 |
Infineon Technologies AG |
发明人 |
Kern Thomas;Hofmann Karl;Goessel Michael |
分类号 |
G11C29/00;G11C29/02;G06F11/10;H03M13/37;G11C13/00;G11C11/16;G11C29/52;G11C7/04;G11C29/42;G11C29/50 |
主分类号 |
G11C29/00 |
代理机构 |
Schiff Hardin LLP |
代理人 |
Schiff Hardin LLP |
主权项 |
1. A method of refreshing a nonvolatile memory having memory cells, the method comprising:
identifying one or more of the memory cells that do not satisfy a data retention test; remapping the one or more identified memory cells from original memory addresses to spare memory addresses; refreshing the one or more identified memory cells; and remapping the one or more identified memory cells from the spare addresses back to the original addresses after the nonvolatile memory ceases to be at a temperature that is greater than a predetermined temperature. |
地址 |
Neubiberg DE |