Samsung Electronics Co., Ltd.

Sang Ho Rha

Ik Soo Kim

Ji Woon Im

Ji Youn Seo

Dai Hong Kim

Min Jae Oh

A semiconductor memory device includes a cell substrate, a mold structure including a plurality of gate electrodes stacked on the cell substrate, the gate electrodes including a first ground selection line, a second ground selection line and a plurality of word lines, which are sequentially stacked, a channel structure that extends in a vertical direction that crosses an upper surface of the cell substrate and penetrates the mold structure, a partial isolation region that extends in a first direction that is parallel with the upper surface of the cell substrate and partially separates the mold structure, and a ground isolation structure that connects two partial isolation regions adjacent to each other in the first direction, extends in the vertical direction and penetrates the first ground selection line and the second ground selection line, wherein a width of the ground isolation structure increases with distance from the cell substrate.

Semiconductor memory device, method for fabricating the same and electronic system including the same

A method of fabricating a semiconductor device and a semiconductor processing apparatus are provided. The method of fabricating a semiconductor device comprises preparing a semiconductor substrate having a front side and a back side, opposing each other, and forming a material layer on the semiconductor substrate. The material layer is formed on at least a portion of the back side of the semiconductor substrate while being formed on the front side of the semiconductor substrate. The material layer formed on the at least a portion of the back side of the semiconductor substrate is removed, while the material layer formed on the front side of the semiconductor substrate remains. A semiconductor process is performed to fabricate the semiconductor device using the material layer remaining on the front side of the semiconductor substrate.

Growing community of inventors

Seongnam-si, South Korea

Sang Ho Rha