Erasing memory segments in a memory block of memory cells using select gate control line voltages

Abstract

A method includes applying erase voltages to data lines and source lines of a memory block of memory cells in a non-volatile NAND architecture memory device during an erase operation. The memory block of memory cells includes a plurality of memory segments and a corresponding plurality of first select gate control lines. Each memory segment includes a plurality of memory sub-blocks that share a respective one of the first select gate control lines. The method includes applying a first bias voltage to the respective first select gate control line of a first one of the memory segments that has failed an erase verify operation to facilitate erasing the first memory segment during the erase operation, and applying a second bias voltage different from the first bias voltage to the respective first select gate control line of a second one of the memory segments that has passed the erase verify operation to facilitate inhibiting erasing of the second memory segment during the erase operation.