Difference b/w "n" and "n+"

[carrot]

Hi

What is the difference between "n" and "n+" regions? Ya it's in the doping concentration, but i need to know what happens if i use "n"region instead of "n+" in the mos transistor

 

[eecs4ever]

n region has less carriers, and thus the resistance in this region is higher.

n+ region has more carriers (free electrons), thus the resistance is lower.

 

[nikhilele]

in other words we can doping in n+ is more then that of n region, for example in npn transistor emitter are made n+ and collector is made n.

 

[tamerakshar]

but i need to know what happens if i use "n"region instead of "n+" in the mos transistor.

you will have a bad characterstic Mosfet.
and i think it won't agree with current equations.
TeE ThE EdE