US Patent 11678594 Semiconductor storage device

According to one embodiment, the semiconductor storage device includes a first wiring extending in a first direction, a second wiring extending in a second direction intersecting the first direction, a first semiconductor device extending in a third direction intersecting the first direction and the second direction, connected to the first wiring and the second wiring, and including a first selector layer and a first variable resistance layer, a first insulator extending in the second and third directions and adjacent to the first semiconductor device in the first direction, and a second insulator extending in the second and third directions and including an air gap disposed between the first semiconductor device and the first insulator.