Patent ID: 11973024
Assignee: KIOXIA CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. The device of claim 1, wherein
the second area further includes a third sub area and a fourth sub area arranged in the first direction,
the third sub area includes a third stepped structure, the third stepped structure including a structure in which a plurality of third terraced portions included in the terraced portions ascend or descend along the first direction and in a direction toward the first area,
the fourth sub area includes a fourth stepped structure and a third pattern, the fourth stepped structure including a structure in which a plurality of fourth terraced portions included in the terraced portions ascend or descend along the first direction and in a direction away from the first area,
the third stepped structure is arranged in a layer above the fourth stepped structure and below the second stepped structure,
the third pattern is continuous with any one of a plurality of conductive layers forming the fourth stepped structure among the conductive layers, and
the third pattern is arranged between the third stepped structure and the fourth stepped structure, at least one contact of the contacts being arranged between the third pattern and a terraced portion of a conductive layer continuous with the third pattern.