Patent ID: 11950404
Assignee: SK HYNIX INC.
Field: Computer technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A memory device, comprising:
a word line stack including word lines that are alternately stacked vertically over a substrate, and having an edge portion;
at least one supporter extending vertically in a direction that the word lines are stacked and supporting the edge portion of the word line stack;
contact plugs that are electrically connected to the word lines at the edge portion of the word line stack; and
active layers positioned between the word lines, and horizontally oriented in a direction intersecting with the word lines,
wherein the at least one supporter includes a plurality of dielectric pillars,
wherein the edge portion of the word line stack includes a first sidewall and a second sidewall which is parallel to the first sidewall, and
wherein the plurality of dielectric pillars are spaced apart from each other along at least one sidewall among the first sidewall and the second sidewall.