发明名称 |
Semiconductor memory device with replacement programming circuit |
摘要 |
The semiconductor memory device capable of performing a repair using only the fuses for programming a defective address is provided. The semiconductor memory device is provided with at least two replacement programming circuits. Each replacement programming circuit includes a programming circuit for programming a defective address. An output of each replacement programming circuit is used as a signal for indicating whether to perform or not to perform a replacement. A word line that cannot be repaired by one replacement programming circuit is repaired using an output from another replacement programming circuit.
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申请公布号 |
US6339554(B1) |
申请公布日期 |
2002.01.15 |
申请号 |
US20000705731 |
申请日期 |
2000.11.06 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
MANO RYUJI |
分类号 |
G11C29/04;G11C29/00;(IPC1-7):G11C7/00 |
主分类号 |
G11C29/04 |
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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