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A diode had a transition capacitance of 1pF and depletion width of 1 µm. The capacitance changes to 10 pF when the depletion width changes. The final depletion width is __________

A diode had a transition capacitance of 1pF and depletion width of 1 µm. The capacitance changes to 10 pF when the depletion width changes. The final depletion width is __________ Correct Answer 0.1 µm

The equation of transition capacitance = ƸA/W Where Ƹ = permittivity of the material of diode, W = depletion width A = area of cross section Since depletion width and capacitance are inversely proportional Depletion width decreases to 0.1 µm.

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