Semiconductor industry chain refers to the whole industrial structure of semiconductor industry, including semiconductor manufacturing, design, testing, packaging, distribution and other links; Semiconductor supply chain refers to the logistics management of semiconductor industry, including raw material procurement, production, logistics and sales.

Semiconductors are materials whose conductivity is between conductor and insulator at room temperature. Semiconductors have applications in integrated circuits, consumer electronics, communication systems, photovoltaic power generation, lighting, high-power power conversion and other fields. For example, diodes are devices made of semiconductors.