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Biased PN junction Schottky diode

Biased PN junction Schottky diode. p. p. n. n. E. Reverse biased PN junction. Maximum electric field is located at x = 0. Reverse biased PN junction energy diagram. Voltage-dependent capacitor. p. n. p. n. Voltage-dependent capacitor.

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Biased PN junction Schottky diode

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  1. Biased PN junction Schottky diode

  2. p p n n E Reverse biased PN junction

  3. Maximum electric field is located at x = 0

  4. Reverse biased PN junctionenergy diagram

  5. Voltage-dependent capacitor p n

  6. p n Voltage-dependent capacitor

  7. Example 5.5 Consider a gallium arsenide PN junction at room temperature. Determine the junction capacitance with a reverse bias voltage of 5 V.

  8. Example 5.5 Consider a gallium arsenide PN junction at room temperature. Determine the junction capacitance with a reverse bias voltage of 5 V.

  9. Forward biased PN junction n p - +

  10. p n - E + Basic model – thermal equilibrium Thermal equilibrium implies Fermi energies are the same. Energy

  11. Reverse biased PN junctionenergy diagram

  12. Forward biased PN junction

  13. Schottky barrier junction n

  14. Schottky barrier junctionEnergy levels before joining n Why?

  15. Schottky barrier junctionThermal equilibrium n Energy - electrons depart leaving a region of ions – Fermi energies lineup Depletion width

  16. Schottky barrier junctionReverse bias conditions n Energy

  17. n Schottky barrier junctionForward bias conditions Energy

  18. Characteristics of a Schottky diode and a PN junction diode

  19. Example 5.7 A silicon PN junction is forward biased at room temperature. Determine the voltage that is required to induce a particular diode current.

  20. N type semiconductor

  21. You think that you had a bad day.

  22. Simple three-dimensional unit cell

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