Answer / ahamed.s

Due ot decrease in Channel length at pinch off voltage five
factors deviate
1)Threshold variation
2)Mobility degration due to Vertical field
3)Velocity Saturation
4)Hot carrier effects
5)O/p impedence variations with drain source voltage

Answer / k s rao

short channel effets is one of the effect in advanced mos
modelang there three short channel effects sub threshold
operation and leckeg currents,
short channel effects degrads the operation of the mos
transistor due to the following factors
large electric feilds
raduced out impedance
hot carrier effect

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