Samsung Electronics Co., Ltd.

Cheolho Baek

Dong-sik Park

A semiconductor device may include a substrate including a cell array region, a data storage structure provided on the cell array region of the substrate, the data storage structure including a bottom electrode, a top electrode on the bottom electrode, and a dielectric layer interposed between the bottom electrode and the top electrode, a blocking layer provided on a top surface of the top electrode, a lower interlayer insulating layer provided on the blocking layer, and a lower contact penetrating the lower interlayer insulating layer and electrically connected to the top electrode. At least a portion of a side surface of the lower contact may contact the blocking layer.

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Suwon-si, South Korea

Cheolho Baek