Junction Capacitance in MOSFET Formulas

Junction Capacitance refers to the capacitance arising from the depletion region between the source/drain terminals and the substrate. And is denoted by C_j. Junction Capacitance is usually measured using the Farad for Capacitance. Note that the value of Junction Capacitance is always negative.

MOSFET formulas that make use of Junction Capacitance

fxEquivalent Large Signal CapacitanceGo

fxTime Delay when NMOS Operates in Linear RegionGo

FAQ

What is the Junction Capacitance?

Junction Capacitance refers to the capacitance arising from the depletion region between the source/drain terminals and the substrate. Junction Capacitance is usually measured using the Farad for Capacitance. Note that the value of Junction Capacitance is always negative.

Can the Junction Capacitance be negative?

Yes, the Junction Capacitance, measured in Capacitance can be negative.

What unit is used to measure Junction Capacitance?

Junction Capacitance is usually measured using the Farad[F] for Capacitance. Kilofarad[F], Millifarad[F], Microfarad[F] are the few other units in which Junction Capacitance can be measured.

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