Semiconductor Devices and Circuits is aimed at undergraduate students of engineering for an introductory course on devices and circuits. The book covers in detail the basic theories and principles of both devices and circuits. Beginning with the fundamental concepts, the book gives an exhaustive coverage of topics such as basic semiconductor physics, crystal structures, junction diode, bipolar junction transistor, MOS capacitor, MOSFET, baising, frequency response of amplifiers, and operational amplifiers. Written in avery lucid and student-friendly style, the book contains plenty of solved examples interspersed in the text for easy understanding of concepts. References have also been given at the end of the book for students interested in further reading of the topics. Numerous exercises at the end of eachchapter challenge readers to test their understanding of concepts.