Thermistors are semiconductor devices with temperature. 热敏电阻是一种半导体元件，它的电阻随温度而变化。
Recently, vacuum microelectronics have attracted much attention because of combining the advantages of both vacuum tubes and solid-state semiconductor devices. 近年来，由于真空微电子元件同时具有真空管及半导体元件的优点，所以引起极大的注意。
