Patent ID: 11908518
Assignee: KIOXIA CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A memory system comprising:
a first wiring extending in a first direction;
a second wiring extending in a second direction intersecting with the first direction;
a memory cell connected to the first wiring and the second wiring between the first wiring and the second wiring, the memory cell including a variable resistance element and a switching element; and
a controller;
wherein
the variable resistance element is switchable between a first low-resistance state and a first high-resistance state,
the switching element is switchable between a second low-resistance state and a second high-resistance state in accordance with a supplied voltage,
a resistance of the second low-resistance state is lower than a resistance of the first low-resistance state,
a resistance of the second high-resistance state is higher than a resistance of the first high-resistance state,
the switching element is a two-terminal type element, and
the controller is configured to
supply the first wiring with a first voltage switching the switching element to the second low-resistance state,
supply the first wiring with a second voltage switching the switching element from the second low-resistance state to the second high-resistance state after the first voltage is supplied, and
detect a first target voltage of the second wiring after the second voltage is supplied.