Podcast
Questions and Answers
What type of material are modern electronic devices typically constructed from?
What type of material are modern electronic devices typically constructed from?
- Superconductors
- Conductors
- Semiconductors (correct)
- Insulators
How does a semiconductor atom achieve stability?
How does a semiconductor atom achieve stability?
- By being a good conductor of electricity
- By sharing valence electrons with neighboring atoms (correct)
- By having an empty valence shell
- By containing a complete set of covalent bonds
What distinguishes semiconductors from electrical insulators and conductors?
What distinguishes semiconductors from electrical insulators and conductors?
- Semiconductors can partially conduct electricity. (correct)
- Semiconductors have empty valence shells.
- Semiconductors do not contain valence electrons.
- Semiconductors are excellent conductors of electricity.
What contributes to the filling of sub shells in semiconductor atoms?
What contributes to the filling of sub shells in semiconductor atoms?
How many electrons does the center atom in a semiconductor effectively have in its M-shell?
How many electrons does the center atom in a semiconductor effectively have in its M-shell?
What is the relationship between the concentration of electrons (n) and holes (p) in an intrinsic semiconductor?
What is the relationship between the concentration of electrons (n) and holes (p) in an intrinsic semiconductor?
How does the intrinsic carrier concentration (ni) depend on the bandgap energy (Eg) of a semiconductor?
How does the intrinsic carrier concentration (ni) depend on the bandgap energy (Eg) of a semiconductor?
What is the role of a pentavalent impurity (such as phosphorus or antimony) when introduced into a semiconductor like silicon?
What is the role of a pentavalent impurity (such as phosphorus or antimony) when introduced into a semiconductor like silicon?
How does the introduction of a trivalent impurity (such as boron, aluminum, or gallium) affect the electronic properties of a semiconductor like silicon?
How does the introduction of a trivalent impurity (such as boron, aluminum, or gallium) affect the electronic properties of a semiconductor like silicon?
What is the relationship between the concentration of excess electrons (n) and the concentration of impurity atoms (Nd) in an n-type semiconductor?
What is the relationship between the concentration of excess electrons (n) and the concentration of impurity atoms (Nd) in an n-type semiconductor?
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