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Compute junction capacitance for a p-i-n photodiode if it has area of 0.69×10-6m2, permittivity of 10.5×10-13Fcm-1 and width of 30μm.

Compute junction capacitance for a p-i-n photodiode if it has area of 0.69×10-6m2, permittivity of 10.5×10-13Fcm-1 and width of 30μm. Correct Answer 2.415×10-7

The junction capacitance is given by, Cj = εsA/w = 10.5×10-13×0.69×10-6/30×10-13 = 2.415×10-7F.

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