Method of manufacturing a semiconductor device

摘要

Semiconductor devices including at least one thin film transistor (TFT) and methods of manufacturing the semiconductor devices. The semiconductor device may include an oxide TFT having a self-align top gate structure. The oxide TFT may include a first oxide semiconductor layer having a first source region, a first drain region, and a first channel region between the first source region and the first drain region, and a first gate insulating layer and a first gate electrode, which are sequentially stacked on the first channel region. A bottom gate electrode may be further disposed below the first oxide semiconductor layer, and the first oxide semiconductor layer may have a multi-layer structure.