Engineering, 21.04.2020 16:42 corbinwilliams

3. Explain the operation of a long channel MOSFET including an explanation of the roleof the gate and drain in causing current ow. Include diagrams of the FET showinghow the depletion and inversion regions change with the applied voltage, and includethe corresponding I-V characteristics. Please read carefully:THIS PROBLEM WILL APPEAR VERBATIM ONTHE FINAL EXAM as a 15 point problem. I will notbe supplying a solutionkey for this particular problem, but would like for you to reach out to me ifyou have questions about answering the problem before the nal examPlease note that the detail for this is contained in my lecture notes, andthe ipped videos. Outline for your answer, and my grading scheme:•10 points: For a xed value ofVgs, explain whyIdschanges shape withVds.{5 points will be allocated for explaining the shape in linear mode{5 points will be allocated for explaining the shape in saturation mode and theassociated "bending" of the curve.{The answer needs to emphasize how the inversion and depletion regions changewith the gate and drain voltages as well as WHY they change for full credit. Just copying gures from the notes still needs an explanation.•5 points: Explain whyIdschanges for each value ofVgs. My hint is to start fromthe expression for drift current. What terms of the drift current would be modi edby a gate voltage, and WHY is this the case?

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3. Explain the operation of a long channel MOSFET including an explanation of the roleof the gate an...

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