Samsung Electronics Co., Ltd.

KiHong Nam

Joon Hyuk Kim

Mansug Kang

Heedon Hwang

Seonghwee Cheong

Gyuwan Choi

Bonghyun Kim

JuEun Kim

Provided are a semiconductor device and a method of fabricating the same. The semiconductor device comprises a first trench formed in a substrate; a first insulating film formed on sidewalls and a bottom surface of the first trench and not formed on a top surface of the substrate; and a first conductive film formed on the first insulating film to partially fill the first trench, wherein the first insulating film comprises a first portion which overlaps the first conductive film and a second portion which does not overlap the first conductive film, wherein the second portion comprises first fixed charges.

Semiconductor device and method of fabricating the same

A semiconductor device with vertical channel transistors and a method of fabricating the same are provided. A method of fabricating the semiconductor device includes patterning a substrate to form a trench that defines an active region, forming a sacrificial pattern in a lower region of the trench, forming a spacer on an upper sidewall of the trench, recessing a top surface of the sacrificial pattern to form a window exposing a sidewall of the active region between the spacer and the sacrificial pattern, doping a sidewall of the trench through the window to form a doped region in the active region, and forming a wiring in the trench to be connected to the doped region.

Semiconductor device with vertical channel transistor and method of fabricating the same

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Seongnam-si, South Korea

KiHong Nam