A-002-01: Germanium, silicon, gallium arsenide, doping, P-type, N-type
What two elements widely used in semiconductor devices exhibit both metallic and non-metallic characteristics?
Silicon and germanium
Galena and germanium
Galena and bismuth
Silicon and gold
In what application is gallium-arsenide used as a semiconductor material in preference to germanium or silicon?
At microwave frequencies
In high-power circuits
At very low frequencies
In bipolar transistors
What type of semiconductor material contains fewer free electrons than pure germanium or silicon crystals?
What type of semiconductor material contains more free electrons than pure germanium or silicon crystals?
What are the majority charge carriers in P-type semiconductor material?
What are the majority charge carriers in N-type semiconductor material?
Silicon, in its pure form, is:
An element which is sometimes an insulator and sometimes a conductor is called a:
Which of the following materials is used to make a semiconductor?
Substances such as silicon in a pure state are usually good:
A semiconductor is said to be doped when it has added to it small quantities of:
● = Unseen
● = Weak
● = Review
● = Learned
● = Incorrect answer