Semiconductor refers to a material that conducts electricity between a conductor and an insulator at room temperature.

Semiconductors are used in integrated circuits, consumer electronics, communication systems, photovoltaic power generation, lighting, high-power power conversion and other fields, such as diodes are devices made of semiconductors.

Whether from the perspective of technology or economic development, the importance of semiconductors is very huge. The core unit of most electronic products, such as computers, mobile phones or digital voice recorders, is closely related to semiconductors.