EECS 384 Old Exam Final

4 m 27 1 point draw the minority carrier density

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Unformatted text preview: 1 xp (µm) 0 1 xn,C (µm) #22: (2 points) Now assume a large reverse bias is applied across both the base ­emitter junction, and the base ­collector junction. With a small circle (•), plot the carrier density of injected minority carriers at both base ­emitter depletion edges, and at both base ­collector depletion edges. #23: (1 point) Draw the minority carrier density profile in the entire base region with a solid line, assuming the straight ­line approximation. #24: (1 point) Draw the tangent line to the minority carrier density profile at the emitter with a solid line, assuming a diffusion length Lp = 0.4 µm. #25: (1 point) Draw the minority carrier density profile throughout the emitter charge ­neutral region with a solid line. #26: (1 point) Draw the tangent line to the minority carrier density profile at the collector with a soli...
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