Patent ID: 11967623
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. A semiconductor device comprising:
a plurality of gate stack structures on a substrate;
a plurality of separation structures that extend in a first direction on the substrate and separate the gate stack structures from each other; and
a plurality of vertical structures that penetrate the gate stack structures,
wherein each of the gate stack structures includes:
a plurality of electrodes and a plurality of cell dielectric layers that are alternately stacked, the electrodes including a plurality of upper electrodes;
a separation dielectric pattern that extends in the first direction, the separation dielectric pattern penetrating the upper electrodes to separate each of the upper electrodes into pieces that are spaced apart from each other in a second direction that intersects the first direction; and
a plurality of capping patterns between the separation dielectric pattern and the upper electrodes, and

wherein ones of the capping patterns that are commonly in contact with the same one of the upper electrodes are spaced apart from each other along the first direction.