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EECS 384 Old Exam Final

32 1 point calculate the excess minority carrier

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Unformatted text preview: d line, assuming the same diffusion length Lp = 0.4 µm. #27: (1 point) Draw the minority carrier density profile throughout the collector charge ­neutral region with a solid line. For the following 4 questions, the answers can be most rapidly estimated via graphical analysis of the plot above. The values should be correct to within 20%. (Note: keep track of sign, and assume that positive conventional currents travel to the right.) #28: (1 point) If the minority diffusion constant in the emitter is Dp = 10 cm2/s, what is the hole current density in the base ­emitter depletion region? #29: (1 poi...
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