Patent ID: 11942153
Assignee: KIOXIA CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. The semiconductor memory device according to claim 1, further comprising:
a third string unit including a third memory string including a third selection transistor and a third memory cell coupled to the third selection transistor;
a fourth string unit including a fourth memory string including a fourth selection transistor and a fourth memory cell coupled to the fourth selection transistor;
a third select gate line that is coupled to the third selection transistor and is different from the first select gate line and the second select gate line; and
a fourth select gate line that is coupled to the fourth selection transistor and is different from the first select gate line, the second select gate line, and the third select gate line,
wherein the third memory cell and the fourth memory cell are coupled to the first word line,
the third string unit is coupled to the first bit line and the second bit line, and
the fourth string unit is not coupled to the first bit line and the second bit line.