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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.
Calculate the carrier frequency and corresponding frequency bandwidth for a microwave communication system operating at 10 cm with a microwave bandwidth of 0.2 mm and for an optical communication system operating at 1.35 micrometers with an optical b..
Implement a multiple mode counter
Given f1(t) = 28.2843 cos ( 100t - 30) and f2(t) = 14.1421 sin (100t + 15), what's the phasor value of f1(t), F1 and f2(t), F2 The sum of f1(t) and f(2)t is f3(t), where f3(t) = Fm cos(100t - theta)
Two friends A and B meet every morning at the Grand Central Station around 7 am. Suppose the actual times they arrive are independent and uniformly distributed between 6:55 am and 7:05am.
Calculate (i) the parallel capacitance C1 that would be required to change the power factor of the total load on the supply to 0.80 lagging and (ii) find the value of the supply current at this power factor.
A certain sample of pure quartz has a dielectric constant of 3.8, dielectric strength of 1.0 kV/0.0010 in, and a density of 2.6 Mg/m3. Assume the number density of dipoles in quartz is the same as the number density of SiO2 units.
You have a 10 nH inductor. What value of capacitor should you put in series with the inductor to achieve an impedance of Z=j50 ohm at f=1.0 GHz
A diode is connected in series with a 30-V rms source to charge a 12-V battery with an internal resistance of 0.1 ohm. Specify the series resistance necessary to limit the peak current to 2A. Estimate the time required to recharge a 10-A hr batter..
A 100 Hz electromagnetic wave is propagating down into the sea water with an electric feld intensity of |E| = 1 V /m just beneath the sea surface. a. What is |E| at a depth of 100 m b. What is the time-average Poynting power density just beneath t..
A coil of 20Ω and inductance of 212mH is connectedin parallel with a 106μF capacitor. The circuit is connected over a 180V, 50Hz(variable frequency source) supply. 1.) Calculate the total Current drawn from the supply .
In the DC COMA shown below, apply Kirchhoff laws-Loop Analysis to find the current in each branch/resistor.
Calculate the annual average of number of photons within the wavelengths (0.495 um
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