題組內容

5. (20%) For a conventional planar n-MOSFET, source/drain regions are heavily doped with a concentration of ND= 61de78815c35b.jpg and the channel has a doping level of 61de78c0cd1d5.jpg. The oxide is 1-nm HfO2with a dielectric constant of 32 and the gate is aluminum (work function Φm = 4.1 eV). Trapped charges are inside the oxide and adjacent to the oxide/semiconductor interface with a density of61de78f99bd8c.jpg The gate length is 1 μm. The dielectric constant of Si is 11.7.61de792833ce2.jpgF/cm

(d) (5 %) If Si substrate is biased under 10 V. Please calculate the △VT.