Psychology homework help
Psychology homework help. The capacitance of a MOS structure is shown in the attached figure. (n+ polysilicon gate, SiO2 insulator, Si substrate). The plot is not necessarily to scale.(A). Is the Si substrate n-type or p-type? Is the channel n-type or p-type? Is it NMOS or PMOS? Explain.(B). Given substrate doping of 1E16cm?3(you will have to identify the doping type from (A)), and oxidethickness Tox = 200A?. Find Ci and Cmin, which are the maximum and minimum MOS capacitance values.(C). Qualitatively plot the C-V curve for the same device measured at high frequency. Which operation region (accumulation, depletion, inversion) is different? Explain the difference.
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