3.19 In a forward-biased pn junction show that the ratio of the current component due to hole injection across the junction to the component due to electron injection is given by Ip In = D p D n L n Lp NA ND Evaluate this ratio for the case N A = 1018/cm3, ND = 1016/cm3, L p = 5 μm, Ln = 10 μm, Dp = 10 cm2/s, and D n = 20 cm2/s, and hence find Ip and In for the case in which the pn junction is conducting a forward current I = 100 μA.

19 11 - 3.19 In a forward-biased pn junction show that the ratio of the current component due to hole injection across the junction to the component due to electron injection is given by Ip In = D p D n L n Lp NA ND Evaluate this ratio for the case N A = 1018/cm3, ND = 1016/cm3, L p = 5 μm, Ln = 10 μm, Dp = 10 cm2/s, and D n = 20 cm2/s, and hence find Ip and In for the case in which the pn junction is conducting a forward current I = 100 μA.

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images - 3.19 In a forward-biased pn junction show that the ratio of the current component due to hole injection across the junction to the component due to electron injection is given by Ip In = D p D n L n Lp NA ND Evaluate this ratio for the case N A = 1018/cm3, ND = 1016/cm3, L p = 5 μm, Ln = 10 μm, Dp = 10 cm2/s, and D n = 20 cm2/s, and hence find Ip and In for the case in which the pn junction is conducting a forward current I = 100 μA.

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