Patent ID: 11943926
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A semiconductor device comprising:
a substrate;
a horizontal conductive layer on the substrate;
a support layer on the horizontal conductive layer;
a stack structure including a plurality of gate electrodes, stacked to be spaced apart from each other in a direction perpendicular to an upper surface of the support layer, and a plurality of interlayer insulating layers stacked alternately with the plurality of gate electrodes;
a channel structure penetrating through the stack structure;
a separation structure penetrating through the horizontal conductive layer, the support layer, and the stack structure and extending in a first direction; and
a conductive pattern on a level between the horizontal conductive layer and a lowermost interlayer insulating layer of the plurality of interlayer insulating layers, and protruding outwardly of the separation structure from a side surface of the separation structure, the conductive pattern spaced apart from a lower surface of the horizontal conductive layer.