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Physics of Semiconductor Devices |
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Capacitance of a pn junction - Exam February 24, 2009The capacitance of a pn junction is measured as a function of voltage. Use your knowledge of how the depletion width depends on voltage and how the capacitance depends on the depletion width to plot the capacitance as a function of voltage for a reverse biased pn junction. How can the built-in voltage Vbi, and the doping densities be determined from this plot? |