Patent ID: 11910614
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. The semiconductor device of claim 11, wherein a plurality of secondary separation structures include:
a first secondary separation structure disposed in the second area, between the first main separation structure and the second main separation structure, and penetrating through the plurality of word lines;
a second secondary separation structure disposed in the second area, between the first main separation structure and the first secondary separation structure, and penetrating through the plurality of word lines; and
a third secondary separation structure disposed in the second area, between the second main separation structure and the first secondary separation structure, and penetrating through the plurality of word lines,
wherein the extension portions of each of the plurality of word lines include a first extension portion, a second extension portion, a third extension portion and a fourth extension portion,
wherein the first extension portion is between the first main separation structure and the second secondary separation structure,
wherein the second extension portion is between the first secondary separation structure and the second secondary separation structure,
wherein the third extension portion is between the first secondary separation structure and the third secondary separation structure, and
wherein the fourth extension portion is between the second main separation structure and the third secondary separation structure.