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Re: why are call the pmos is strong1 and weak0and nmos is we
NMOS will turn on whn Vgs(Vg-Vs)>Vth, PMOS will turn on whn Vgs(Vg-Vs)<Vth.
Whn NMOS is used to pull down the ouput to Logic-0, Vgs won't change it remains at VDD(input voltage).Since Vdd>Vth NMOS will be on throughout the...
Re: spice vs ibis
SPICE models contains transistor level information which are confidential for vendor .These r slow for simulation but more accurate than IBIS models.
IBIS are like behavioral models of Buffer,thy do not contain transistor level informations and are easy to get from...
antenna diode
Whn u connect a NAC diode near the gate there are two paths for charge to go
1.through NAC diode to the sbstrate 2 to the transistor gate.
NAC Doide(Antenna diode) provides an alternate path for the charge to substrate.
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