Improved Performance of NILC Poly-Si Nanowire TFTs by Using Ni-Gettering

Abstract

Nickel contamination inside nickel-metal induced lateral crystallization polycrystalline silicon is an issue to fabricate high performance nanowire thin film transistors. The phosphorous-doped alpha-Si/chem-SiO2 films were employed as Ni-gettering layers to investigate effect of Ni residues on the performance of NILC poly-Si NW TFTs. It was found that the performance of NW TFTs was greatly improved after Ni-gettering process.