3.5 The linear electron-concentration profile shown in Fig. E3.5 has been established in a piece of silicon. If n0 = 1017/cm3 and W = 0.5 µm, find the electron-current density in microamperes per micron squared (µA/µm2). If a diffusion current of 1 mA is required, what must the cross-sectional area (in a direction perpendicular to the page) be? Recall that Dn = 35 cm2/s.
3.5 The linear electron-concentration profile shown in Fig. E3.5 has been established in a piece of silicon. If n0 = 1017/cm3 and W = 0.5 µm, find the electron-current density in microamperes per micron squared (µA/µm2). If a diffusion current of 1 mA is required, what must the cross-sectional area (in a direction perpendicular to the page) be? Recall that Dn = 35 cm2/s.
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