节点文献
多晶硅薄膜的表面处理工艺
Surface Plasma Passivation of the Polycrystalline Silicon Thin Films by Using NH3 or N2O Gas
【摘要】 采用NH3和N2O的等离子体分别对p-Si(多晶硅)薄膜表面进行了钝化处理,处理后的 p-Si TFT(薄膜晶体管)具有比未处理 TFT更优越的性能,通电试验与热应力试验后,处理后的器件呈现出更好的承受电负荷和热应力能力,钝化的微观机理是NH3和N2O等离子体中和了p-Si薄膜的悬挂键,形成牢固的Si-N键,减少了表面态密度.
【Abstract】 The poly-Si thin film was passivated by using NH3 or N2O plasma before deposition of gate diode. The poly-Si TFTs fabricated with this process have better electrical characteristics than those of conventional poly-Si TFT without NH3 or N2O plasma passivation. These devices also have better hot-carrier endurance and thermal stability. Both the nitrogen pile-up at the Sio2/poly-Si interface and the strong Si-N bond formation to terminate the dangling bonds at the grand boundaries of the poly-St thin film in the channel region are the major causes.
- 【文献出处】 无机材料学报 ,Journal of Inorganic Materials , 编辑部邮箱 ,2001年04期
- 【分类号】TN304.055
- 【被引频次】9
- 【下载频次】272