Abstract:
A method of operating a non-volatile memory device includes selecting a first select transistor from among a plurality of select transistors included in a NAND string, and performing a check operation on a first threshold voltage of the first select transistor. The check operation includes comparing the first threshold voltage with a first lower-limit reference voltage level, and performing a program operation on the first select transistor when the first threshold voltage is lower than the first lower-limit reference voltage level. When the first threshold voltage is equal to or higher than the first lower-limit reference voltage level, the check operation on the first threshold voltage is ended.
Abstract:
A non-volatile memory device is provided. The non-volatile memory device includes a cell string including a plurality of non-volatile memory cells; and an operation control block configured to supply a program voltage to a word line connected to a selected non-volatile memory cell among the plurality of non-volatile memory cells during a program operation, configured to supply a first negative voltage to the word line during a detrapping operation, and configured to supply a second negative voltage as a verify voltage to the word line during a program verify operation.
Abstract:
A page buffer comprises a static latch configured to store data received from an external device, and a dynamic latch configured to receive the data stored in the static latch through a floating node, the dynamic latch comprising a storage capacitor, a write transistor configured to write the data of the floating node to the storage capacitor, and a read transistor configured to read the data of the storage capacitor, and the write transistor and the read transistor sharing the floating node.