Simple waves

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MOSFET operation
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Animation of the MOSFET manufacturing processI
encourage you to look at the website given below
and use the button animate to next the actual
process is described for each step.

• http//jas.eng.buffalo.edu/education/fab/NMOS/nmos
  .html

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Basic structure of the MOSFET
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Basic idea of the MOSFET
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MOS capacitor p type semiconductorvoltage bias
effects battery switched




E
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MOSFET p type semiconductor gate voltage VG gt VT
Electrons can flow from the source to the drain
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L is not between the metal electrodes
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NMOS -- p type semiconductor -- gate voltage VG
variable - circuit models
Enhancement mode
Depletion mode
n channel
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PMOS -- n type semiconductor -- gate voltage VG
variable - circuit models
Enhancement mode
Depletion mode
p channel
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NMOS PMOS
NMOS n channel in a p-type semiconductor
PMOS p channel in an n-type semiconductor
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NMOS -- p type semiconductor -- gate voltage VGS
lt VT
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NMOS -- p type semiconductor -- gate voltage VGS
gt VT
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Derivation of the conductance
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NMOS -- p type semiconductor -- gate voltage VGS
gt VT long channel
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NMOS -- p type semiconductor VGS gt VT
changing VDS
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Typical characteristics
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Biasing effects N channel MOSFEThttp//www.mtmi.v
u.lt/pfk/funkc_dariniai/transistor/mosfet.htm
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Simple three-dimensional unit cell