| 摘要 |
PURPOSE: A deletion method for a nonvolatile memory device capable of simultaneously detecting even and odd bit lines is provided to shorten the entire deletion time and verification time by selecting the event and the odd bit lines when verifying deletion. CONSTITUTION: An eliminating method for a nonvolatile memory device capable of simultaneously detecting an even bit line and an odd bit line eliminates the selected memory block. The entire bit line of a memory block is pre-charged and the voltage of all of the bit lines is changed according to the blank state of the memory cells(S303). The data is read according to the voltage level of the first bit line(S305) and of the second bit line(S307). Deletion is verivied according to the read result.
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