Chegg Solutions for Microelectronic Circuits (Adel S Sedra, Kenneth C Smith) (Z-Library)_parte_406

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Step 1 of 2 3.007E The magnitude of charge on the n side of the pn junction is, The magnitude of the charge on the p side of the junction is, Here, q is the charge of the electron q = 1.6 10⁻¹⁹ A is the cross sectional area of the junction, is the built in depletion region of the n side, is the depletion region of the p side, is the donor concentration, and is the acceptor concentration. The charge equality condition is, This can be re arranged as follows: Step 2 of 2 The width W of the depletion layer is, = Where is the electrical permittivity of silicon Obtain the value of the V₀ from the given relation. W Square on both sides of the equation. = = = = Therefore, the barrier voltage is,