HU Hui-yong, ZHANG He-ming, DAI Xian-ying, et al. Electron-Sheet-Density Model in Strain-Si Modulation-Doped NMOSFET[J]. Acta Electronica Sinica, 2005, 33(11): 2056-2058.
HU Hui-yong, ZHANG He-ming, DAI Xian-ying, et al. Electron-Sheet-Density Model in Strain-Si Modulation-Doped NMOSFET[J]. Acta Electronica Sinica, 2005, 33(11): 2056-2058.DOI:
The electron-sheet-density in the quantum well of Strain-Si modulation-doped NMOSFET(Metal-Oxide-Silicon Field Effect Transistor)affects switch performance.The model of electron-sheet-density in Strain-Si modulation-doped NMOSFET quantum well is established by solving Poisson equations
and the model of the threshold voltage is established. Then the models are analyzed by MATLAB when the device is static.The relations of the δ-doping-layer concentration and the space layer thickness to the electron-sheet-density and the threshold voltage are also discussed at static state.The influences of physical parameters of material and structure parameters of device on the electron-sheet-density and the threshold voltage are analyzed by using MATLAB.With decreasing δ-doping-layer concentration and increasing the space layer thickness
the electron-sheet-density and the absolute value of threshold voltage decrease.