| 摘要 |
A semiconductor memory device is provided which can apply a redundancy circuit replacement program to cells by a DS testing in a parallel testing state. That is, in this semiconductor memory device, when the redundancy circuit replacement is effected on an electrically programmable nonvolatile memory device, an internal circuit is so provided as to detect a defect chip retrievable on a DS tester while being in a parallel testing state as well as address information contained in the defect chip and, by doing so, it is possible to achieve the redundancy circuit replacement.
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