This thorough introduction to the underlying physics of semiconductor devices features fully-worked examples for all principles and concepts. Several topics are taken to the "forefront-of-technology" level to show readers just where the current intellectual and technological limits lie. KEY Covers topics such as atoms and bonding, energy bands and effective mass, carrier concentrations in semiconductors, conduction in semiconductors, Gunn diode, p-n junction, LED, photodetectors and solar-cell, bipolar transistor, field-effect transistors, the semiconductor laser, and an introduction to quantum theory.