Theory of Semiconductor Devices

The theory of semiconductor devices explains how materials like silicon control electrical current. Semiconductors can act as switches or amplifiers by manipulating the flow of electrons through specialized regions called p-n junctions. These devices, such as diodes and transistors, form the foundation of modern electronics, enabling the creation of computers, smartphones, and other technology. Their unique ability to precisely regulate electrical signals stems from their electrical properties, which can be altered through doping—adding tiny amounts of impurities—to perform various functions crucial to electronic circuit operation.