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Why Nand gate i preferred Over Nor gate in fabrication?

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gurpreet.singh

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why nand gate is preferable

Why Nand gate i preferred Over Nor gate in fabrication?

Added after 2 minutes:

I know this thing that NAND gate is faster than NOR but how it is faster can anybody explain it??
 

who is faster nand or nor gate

NAND is a better gate for design than NOR because at the transistor level the mobility of electrons is normally three times that of holes compared to NOR and thus the NAND is a faster gate.
Additionally, the gate-leakage in NAND structures is much lower. If you consider t_phl and t_plh delays you will find that it is more symmetric in case of NAND ( the delay profile), but for NOR, one delay is much higher than the other(obviously t_plh is higher since the higher resistance p mos's are in series connection which again increases the resistance).
 

nand gate is preferred over nor gate why

Hi,
This question had been asked many times. Please find response here
 

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