SEMICONDUCTOR MEMORY DEVICE AND METHOD OF OPERATING THE SAME

摘要

A semiconductor memory device includes a memory string and a peripheral circuit. The memory string has a pipe cell, a plurality of memory cells, and at least one channel layer having a three-dimensional U-shaped structure. The peripheral circuit is configured to perform an erase operation on the pipe cell. A method of operating the semiconductor memory device includes selecting the memory string and performing the erase operation on the pipe cell.

主权项

1. A semiconductor memory device, comprising:
a memory string including a pipe cell, a plurality of memory cells configured to be arranged in series between a bit line and the pipe cell and between a source line and the pipe cell in a vertical direction to the pipe cell, and a channel layer having a three-dimensional U-shaped structure; and a peripheral circuit configured to perform an erase operation on the pipe cell by applying a ground level voltage to the pipe cell when an erase voltage is applied to the plurality of the memory cells.