Patent ID: 11869599
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 16:
17. A nonvolatile memory device, comprising:
a memory cell array including a plurality of cell strings commonly connected between a plurality of bitlines and a source line, the plurality of cell strings including gate induced drain leakage (GIDL) string selection transistors that are connected to the plurality of bitlines and GIDL ground selection transistors that are connected to the source line, the plurality of cell strings being grouped into a plurality of memory blocks; and
a control circuit configured to:
during a precharge period, precharge channels of the cell strings of a selected memory block among the plurality of memory blocks by applying a GIDL on voltage to gates of the GIDL string selection transistors and the GIDL ground selection transistors included in the cell strings of the selected memory block, the GIDL on voltage having a voltage level that induces GIDL;
during the precharge period, prevent a precharge of channels of the cell strings of an unselected memory block among the plurality of memory blocks by controlling a gate voltage of the GIDL string selection transistors and the GIDL ground selection transistors included in the cell strings of the unselected memory block such that the GIDL is prevented; and
during a program execution period after the precharge period, program memory cells of the selected memory block connected to a selected wordline by applying a program voltage to the selected wordline.