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3 votes
5 answers
3k views

Why reverse connected MOSFET start to turn on at Vgs<Vth?

The circuit shown below is implemented using two AO3400 N-MOSFETs. AO4300 datasheet here. The right-hand MOSFET is connected with normal polarity (Vds is positive), while the left-hand MOSFET is ...
ssa2's user avatar
  • 93
6 votes
1 answer
163 views

MOSFET switching on

I have a doubt. Consider an N-MOSFET: which is the voltage that can switch on it? The voltage between Gate and? Sometimes I read "between Gate and Bulk", sometimes "between Gate and Source", sometimes ...
Kinka-Byo's user avatar
  • 3,550
0 votes
1 answer
203 views

Identifying the logic function of this specific MOS layout

I am not sure about the functionality of the following MOS layout. I came up with the logic function AND(NOT(AB),C). Can anyone confirm or correct me ? PS: The steps I made are attached
Daher928's user avatar
2 votes
2 answers
574 views

When does Direct Source-Drain tunneling become a problem?

Because of the probabilistic nature of quantum mechanics, direct source-drain tunneling is bound to happen as a result of CMOS scaling. The smaller the transistors become, the more tunneling occurs. ...
Phaptitude's user avatar