Semiconductor Interview Questions & Answers

  1. Question 1. What Do Diodes Do?

    Answer :

    Block current in one direction while letting current flow in another direction.

  2. Question 2. Where Must Doping Be Added Within A Semiconductor To Alter Their Conductivity?

    Answer :

    Their crystal lattice.

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  4. Question 3. What Is The Value Of Kt At Room Temperature?

    Answer :

    25.6 meV

  5. Question 4. Which Semiconductor Has A Direct Bandgap?

    Answer :

    Gallium arsenide has a direct bandgap.

  6. Question 5. What Are The Four Elements In Cigs?

    Answer :

    1. Copper
    2. indium
    3. gallium
    4. selenium
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  8. Question 6. How To Use Resistors?

    Answer :

    Resistors are typically used to control volume in electronics.

  9. Question 7. What Is An Exciton?

    Answer :

    An electron-hole pair is called an exciton.

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  11. Question 8. What Type Of Semiconductor Do You Get If You Dope It With Boron?

    Answer :

    A p-type semiconductor.

  12. Question 9. What Is A Iii-v Semiconductor?

    Answer :

    A semiconductor made from elements in columns III and V of the periodic table.

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  14. Question 10. What Mathematical Formula Most Accurately Predicts The Fermi Level Of A Semiconductor?

    Answer :

    Fermi-Dirac distribution.

  15. Question 11. What Are The Four Terminals Of An Fet Transistor?

    Answer :

    1. Source
    2. gate
    3. drain
    4. body
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  17. Question 12. Can Pure Silicon Alone Be Used To Make A Semiconductor?

    Answer :

    No. It needs impurities to become semi-conductive.

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  19. Question 13. What Does The Acronym Igbt Stand For?

    Answer :

    Insulated gate bipolar transistor.

  20. Question 14. What Are The Components Of A Mosfet?

    Answer :

    1. Source
    2. drain
    3. gate
  21. Question 15. What Does Cmos Stand For?

    Answer :

    Complementary metal-oxide-semiconductor.

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  23. Question 16. What Are The Two Bands In Which An Electron Can Reside?

    Answer :

    Valence and conduction

  24. Question 17. What Is The Reason For Reducing Drain Doping In A Metal-oxide Semiconductor Device Design?

    Answer :

    To improve breakdown voltage.

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  26. Question 18. What Is A Semiconductor?

    Answer :

    The combination of a conductive material, and an insulator.

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  28. Question 19. What Does ‘doping’ Do?

    Answer :

    Changes a semiconductor’s behavior.

  29. Question 20. When Silicon Has Been Doped, What Does This Mean?

    Answer :

    Impurities have been added that alter its electronic properties in a controllable way.

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  31. Question 21. What Is Doping?

    Answer :

    The process of deliberately adding impurities to affect conductivity is called Doping.

  32. Question 22. Why Are Semiconductors Important?

    Answer :

    They successfully replaced vacuum tubes as the primary way to compute data.

  33. Question 23. What Does Led Stand For?

    Answer :

    Light Emitting Diode

  34. Question 24. What Does Mosfet Stand For?

    Answer :

    Metal–oxide–semiconductor field-effect transistor.

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  36. Question 25. What Does Bjt Stand For?

    Answer :

    Bipolar junction transistor.