Materials that have the resistance levels between those of a conductor and an insulator are referred to as semiconductors. They are quite common, found in almost all electronic devices. Good examples of semiconductor materials are germanium, selenium, and silicon. Silicon is used in most semiconductors for computer and electronic components, as is it considered to be the best semiconductor material.
A semiconductor's quality is measured as a value of electrical conductivity, which is how well a material conducts electricity. As the temperature rises in a semiconductor, its conductivity increases due to a decrease in resistance in the material.
Components and devices that use semiconductors
Examples of components and devices that utilize semiconductors and semiconductor materials include the following: