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For the gate to change state, the gate capacitance must be charged or discharged. Since the transistor driving the gate has a certain amount of output impedance (resistance), this together with the gate capacitance forms an RC network. The gate capacitance must charge through the driver's output impedance, and this takes time. So, gate capacitance limits the maximum speed at which the device can be operated. Decrease the capacitance, and you can clock the device faster!

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What are CMOS parameters?

Gate Area, gate capacitance per unit area, gate capacitance, parasitic capacitance, carrier density, channel resistance, gate delay, max operating freq, saturation current, power dissipation, current density, power speed product


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Effects of stray capacitance in ac fan out?

due to the load gates capacitance values,there is a increased load capacitance on the driving gate


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