Patent ID: 11972798
Assignee: KIOXIA CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 0:
1. A variable resistance nonvolatile memory comprising:
a first memory cell including
a variable resistance layer that extends in a first direction above a semiconductor substrate,
a first semiconductor layer that extends in the first direction and is in contact with the variable resistance layer,
a first insulator layer that extends in the first direction and is in contact with the first semiconductor layer, and
a first voltage applying electrode that extends in a second direction orthogonal to the first direction and is in contact with the first insulator layer; and

a second memory cell including a second voltage applying electrode that is located above the first voltage applying electrode, extends in the second direction, and is in contact with the first insulator layer, wherein
when a write operation is performed on the first memory cell, a first voltage is applied to the second voltage applying electrode, and
when a write operation is performed on the second memory cell, a second voltage that is lower than the first voltage, is applied to the first voltage applying electrode.