Diffusion current practice problems
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Read the Diffusion current class notes.
In some region of a semiconductor, the electron concentration varies sinusoidally with distance, as shown below,
with n1 = 9.0e+12 cm-3 and L = 0.3 μm.
Calculate the electron diffusion current density at the point x = 0.18 μm.
The electron diffusion coefficient is Dn = 35 cm2/V·s.
Note: Be careful with radians versus degrees for the function. In this case, you will likely be using radians.
