Abstract
Amorphous oxide semiconductors (AOSs) are attracted much attention due to high mobility, low temperature deposition, flexible, transmission, and uniformity. The thin film transistors (TFTs) with a-IGZO thin film as active layer perform higher field-effect mobility (>10 cm²/V·S), larger Ion/Ioff ratio (106), smaller subthreshold swing and better stability against electrical stress. LaAlO₃/ZrO₂ is employed as gate electrode and gate dielectric layer for a-IGZO TFTs, under the premise that performance of a-IGZO TFTs without decreasing. Due to the good selectivity of energy transformation and rapid heating rate, microwave annealing is applied to improve the device reliability in the investigation. With adjusting the parameter of microwave annealing, the effect on reliability characteristics of a-IGZO TFTs is studied.
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