A high-performance thin-film transistor with a vertical offset structure

In this study, we propose a novel device structure combined with conventional hydrogenated amorphous silicon (a-Si:H) for the source and drain regions and microcrystalline silicon (mu c-Si:H) for the channel region to obtain a high-performance thin-film transistor (TFT), This is a vertical a-Si:H offset structure used to suppress OFF-state current to a small value which is comparable to the conventional a-Si:H TFT's with a much higher drivability. The fabrication process is simple, low temperature (less than or equal to 300 degrees C), and low cost, with a potential for high reliability.