Unformatted text preview: ox = − Q dep /C ox , which depends linearly on x d , and Ψ s = qN A x d 2 /2 ε s . Solve the resulting quadratic equation for x d . Note that this result for x d can be used to yield the semiconductor contribution (Cs = ε s /x d ) to the total gate capacitance in this depletion region, by putting C S in series with C ox . 4. Problem 9.1 for nMOS and N A = 1E15 and 1E16 cm3 only, in chapter 9, p. 477 of Muller, Kamins & Chan (3rd edition). 5. Problem 9.3, in chapter 9, p. 477 of Muller, Kamins & Chan (3rd edition). Hint: note that Q n /q is per area. 6. Problem 9.4 (a) only, in chapter 9, p. 477 of Muller, Kamins & Chan (3rd edition). Hint: Note that J = ρ charge v. Homework assignments will appear on the web at: http://www.ece.udel.edu/~kolodzey/courses/eleg646s10.html Note: On each homework and report submission, please give your name, the due date, assignment number and the course number....
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 Spring '08
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 Quadratic equation, Elementary algebra, Pn junction, depletion width Xd

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