Semiconductor Devices Quiz part 1

Who were the inventors of the first transistor?

• John Bardeen, William Shockley, and Walter Brattain

• Thomas Edison, Alexander Graham Bell, Nikola Tesla

• Albert Einstein, Marie Curie, Isaac Newton

• Galileo Galilei, Leonardo da Vinci, Johannes Kepler

What is Moore's Law related to in the field of semiconductors?

• The development of vacuum tubes

• The discovery of electricity

• The doubling of transistors in a chip every 24 months

• The invention of the first computer

What is the function of a P-N Junction Diode?

• Amplifying electrical signals

• Allowing current to flow in one direction only

• Storing data in binary form

• Generating magnetic fields

What is the purpose of Field Effect Transistors (FET)?

• Controlling the flow of current based on an electric field

• Regulating the voltage in a circuit

• Converting sound waves into electrical signals

• Producing light from electricity

What is the main difference between conductors, insulators, and semiconductors?

• Weight per unit volume

• Melting points

• Conductivity levels

• Color variations

What is the energy band gap in a solid material?

• The difference in energy levels between the valence and conduction bands

• The amount of energy required to break a covalent bond

• The temperature at which a material becomes a superconductor

• The speed at which electrons move in a circuit

What happens to the conductivity of a semiconductor as the temperature increases?

• It remains constant

• It decreases

• It becomes zero

• It increases

What is the purpose of doping in extrinsic semiconductors?

• To change the color of the semiconductor material

• To increase the conductivity by adding impurity atoms

• To increase the weight of the semiconductor wafer

• To reduce the size of the semiconductor chip

What are valence electrons responsible for in an atom?

• Determining the chemical properties of the atom

• Controlling the temperature of the atom

• Regulating the pressure inside the atom

• Affecting the magnetic field of the atom

What is the energy gap between the valence band and conduction band called?

• Forbidden energy band (band gap)

• Activation energy barrier

• Potential energy difference

• Kinetic energy threshold