Patent ID: 11882700
Assignee: KIOXIA CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A semiconductor storage device, comprising:
a substrate;
a bit line provided above the substrate and extending in a first direction parallel to a surface of the substrate;
a first stack including a plurality of first conductive layers and a plurality of first insulating layers alternately stacked in a second direction intersecting the surface of the substrate;
a plurality of first semiconductor layers respectively extending through the first stack in the second direction;
a second semiconductor layer, extending in a third direction parallel to the surface of the substrate, above the first stack and electrically connected to each of the plurality of first semiconductor layers;
a second stack including a plurality of second conductive layers and a plurality of second insulating layers alternately stacked in the second direction, the first and second stacks being adjacent in the first direction;
a plurality of third semiconductor layers extending through the second stack in the second direction;
a fourth semiconductor layer, extending in the third direction, above the second stack and electrically connected to each of the plurality of third semiconductor layers; and
a third conductive layer in physical contact with an upper surface of the second semiconductor layer and an upper surface of the fourth semiconductor layer, wherein the second and fourth semiconductor layers extend in parallel along the third direction with each other and are spaced from each other in the first direction.