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Negative bias temperature instability (NBTI) degradation mechanism in body-tied low-temperature polycrystalline silicon thin-film transistors (LTPS TFTs) is analyzed by the charge-pumping (CP) technique. The properties of bulk trap states (including interface and grain boundary trap states) are directly characterized from the CP current. The increase of the fixed oxide charges is also extracted, which...
We investigated the impact of plasma process on the devices' performance and reliability degradation of low temperature poly-Si thin film transistors (LTPS TFTs). LTPS TFTs with different antenna areas were used to study the effects of the plasma etching process on the devices. The larger TFT antenna area, the more performance instability occurs. The reliability of LTPS TFTs with large antenna areas...
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