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Explanation of band diagram of MOSFET

by ohopu
Tags: band, diagram, explanation, mosfet
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ohopu
#1
Feb4-12, 01:59 PM
P: 4
Why the voltage drop across the insulator is linear in the band diagram of a MOSFET??
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fbs7
#2
Feb4-12, 09:09 PM
P: 127
Quote Quote by ohopu View Post
Why the voltage drop across the insulator is linear in the band diagram of a MOSFET??

It's because the oxide is considered to have no current and no charge; therefore, from Gauss Law: dE/dx = ρ/ε = 0... ergo E = constant. As dV/dx = E, V is linear with distance.


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