Patent ID: 11894360
Assignee: SK HYNIX INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A semiconductor device comprising:
two slit patterns extending substantially in parallel with each other in a first direction;
a trench pattern between the two slit patterns extending in parallel with the slit patterns in the first direction; and
channel plugs between the slit patterns and the trench pattern,
wherein the slit patterns, the trench pattern, and the channel plugs are disposed in a cell region,
wherein the channel plugs comprise:
two first channel plugs adjacent to the slit patterns, respectively;
two second channel plugs between the two first channel plugs;
two third channel plugs between the two second channel plugs; and
two fourth channel plugs between the two third channel plugs, wherein:
the two first, second, third, and fourth channel plugs are arranged in a zigzag form in a second direction perpendicular to the first direction,
the trench pattern is disposed between the two fourth channel plugs,
top surface shapes of the two first channel plugs are an elliptical shape,
a maximum diameter of each of the two first channel plugs are greater than a maximum diameter of each of the two second, third, and the fourth channel plugs,
a long axis direction of the first two channel plugs and the first direction form an acute angle greater than 1° and less than 90°.