Intro to Semiconductor Devices
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What is the definition of a donor?
A donor is an impurity that creates an electron in a semiconductor. It has one more electron than the semiconductor, and an energy level near the conduction band.
T/F: A BJT is defined to be a majority carrier device.
FALSE (Minority carrier device)
T/F A PN junction diode is a majority carrier device
False
T/F The intrinsic carrier concentration is inversely proportional to the bandage of the material.
False
Define the meaning of a trap.
An energy state that exists in the middle of the band gap. It acts as a recombination center and tends to reduce lifetime.
A material is found to have a band gap of 8eV. Which of the following best classifies this material? Metal,Semiconductor,Insulator
Insulator, bandgap >5eV
