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MOSFET operation

MOSFET operation. Animation of the MOSFET manufacturing process I 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. Basic structure of the MOSFET.

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MOSFET operation

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  1. MOSFET operation

  2. 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

  3. Basic structure of the MOSFET

  4. Basic idea of the MOSFET - -

  5. V G MOS capacitor p type semiconductorvoltage bias effects –battery switched + + + + E - + - + - + - +

  6. V G MOSFET p type semiconductor gate voltage VG > VT Electrons can flow from the source to the drain

  7. L is not between the metal electrodes

  8. V G NMOS -- p type semiconductor -- gate voltage VG variable - circuit models Enhancement mode Depletion mode n channel

  9. V G PMOS -- n type semiconductor -- gate voltage VG variable - circuit models Enhancement mode Depletion mode p channel

  10. NMOS & PMOS NMOS – n channel in a p-type semiconductor PMOS – p channel in an n-type semiconductor - +

  11. V G NMOS -- p type semiconductor -- gate voltage VGS < VT -

  12. V G NMOS -- p type semiconductor -- gate voltage VGS > VT - -

  13. V G Derivation of the conductance

  14. V G NMOS -- p type semiconductor -- gate voltage VGS > VT – long channel

  15. V G NMOS -- p type semiconductor – VGS > VT & changing VDS

  16. Typical characteristics

  17. Biasing effects N channel MOSFEThttp://www.mtmi.vu.lt/pfk/funkc_dariniai/transistor/mosfet.htm

  18. Simple three-dimensional unit cell

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