Diffusion current practice problems
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Read the Diffusion current class notes.
In some region of a semiconductor, the electron concentration varies exponentially with distance, as shown below,
with n1 = 7.0e+14 cm-3 and L = 0.7 μm.
Calculate the electron diffusion current density at the point x = 3.5 μm.
The electron diffusion coefficient is Dn = 35 cm2/V·s.
