VERTICAL TRANSISTOR AND MANUFACTURING METHOD THEREOF

Provided are a vertical transistor and a method of manufacturing the same. The vertical transistor includes a substrate, a lower electrode on the substrate and including a metal material, a carbon thin film being conductive and on the lower electrode, an oxide semiconductor layer on the carbon thin film, a gate electrode apart from the oxide semiconductor layer, a gate insulating layer arranged between the oxide semiconductor layer and the gate electrode, and an upper electrode on the oxide semiconductor layer, wherein the lower electrode. The carbon thin film, the oxide semiconductor layer, and the upper electrode are arranged in a direction perpendicular to the substrate.