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Low Thermal Budget NiSi Films on SiGe Alloys

机译:低温预算NISI薄膜在SIGE合金上

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Nickel silicides were formed on Si (100) substrates and CVD grown Si_(0.9)Ge_(0.1)/Si layers by low thermal budget annealing of evaporated Ni films to evaluate their utility for ultra shallow junctions.The phase formation and microstructure of silicides formed using conventional furnace and rapid thermal annealing were studied by x-ray diffraction,Rutherford backscattering (RBS),x-ray photoelectron spectroscopy (XPS) and atomic force microscopy.RBS simulations and XPS study revealed the formation of a ternary nickel germanosilicide phase for the SiGe alloy.The incorporation of Ge resulted in a higher temperature window for the stability of low- resistive monosilicide phase.Electrical properties of the grown silicides were characterized by four-probe resistivity and contact resistance measurements.
机译:通过蒸发的Ni膜的低热预算退火在Si(100)底物和CVD生长Si_(0.9)Ge_(0.1)/ Si层上形成镍硅化物,以评估其用于超浅线的效用。形成的硅化物的相形成和微观结构通过X射线衍射研究X射线衍射(RB),X射线光电子能谱(XPS)和原子力显微镜,研究了使用常规炉和快速热退火。用于XPS模拟和XPS研究显示,形成三元镍锗硅化物相的形成SiGe合金导致Ge的掺入导致更高的温度窗口,用于低电阻单硅烷相的稳定性。通过四探测电阻率和接触电阻测量,表征生长硅化物的电性能。

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