Fig. 2: 3D cross-sectional schematics of common thin-film transistor (TFT) configurations.
From: Model representation in amorphous metal oxide thin-film transistors: a critical review
a Bottom-Gate Bottom-Contact, b Bottom-Gate Top-Contact, c Top-Gate Bottom-Contact, and d Top-Gate Top-Contact. Each structure highlights key layers, including the substrate, gate dielectric, semiconductor, gate electrode, and source/drain electrodes. The colors to the transistor components as follows: gray for Substrate, green for Gate Dielectric, blue for Semiconductor, red for Gate Electrode, and yellow for Source/Drain Electrode.
