Abstract
We demonstrate the fabrication process and the electrical characteristics of n-channel polycrystalline silicon thin-film transistors (poly-Si TFTs) with different numbers of channel stripes. The device's electrical characteristics, such as on-current, threshold voltage, and subthreshold swing, were improved by increasing the number of channel stripes due to the enhancement of gate control. However, the electric field strength near the drain side was enlarged in multi-channel structures, causing severe impact ionization. The degradation of device's reliability under various electrical stress conditions was suggested.
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