Introduces and explains terminology, models, properties, and concepts associated with semiconductor devices. Provides detailed insight into the internal workings of the “building-block” device structures such as the pn-junction diode, Schottky diode, BJT, MOS capacitor and MOSFET. Presents information about a wide variety of other devices including solar cells, LEDs, HBTs, and modern field –effect devices. Systematically develops the analytical tools needed to solve practical device problems. Solar Cells LED and HBTs.