Samsung Electronics Co., Ltd.

Yeongeun Yook

Hyuk Kim

Jinyoung Park

A semiconductor device and an electronic system including the same are provided. The semiconductor device may include a stacked structure including electrodes stacked on a substrate, interlayer insulating layers interposed between the electrodes, and an upper insulating layer covering the uppermost electrode among the electrodes, and a vertical structure passing through the stacked structure in a vertical direction, and each of the interlayer insulating layers may have a first thickness, and the upper insulating layer may have a second thickness greater than the first thickness, and the upper insulating layer may include an insulating material different from an insulating material of each of the interlayer insulating layers.

Semiconductor device and electronic system including the same

A semiconductor device includes a lower structure including lower wirings. A horizontal wiring layer is disposed on the lower structure while including a horizontal conductive layer, and a horizontal insulating layer extending through the horizontal conductive layer. A stack structure is disposed on the horizontal wiring layer. A channel structure extending into the horizontal wiring layer while extending through the stack structure is provided. A through electrode connected to the lower wirings while extending through the stack structure and the horizontal insulating layer is provided. The stack structure includes insulating layers and electrode layers repeatedly alternately stacked, and an interlayer insulating layer disposed at side surfaces of the insulating layers and the electrode layers. The through electrode includes a first portion extending into the interlayer insulating layer, and a second portion disposed between the first portion and the lower wirings while having a smaller horizontal width than the first portion.

Growing community of inventors

Seongnam-si, South Korea

Yeongeun Yook