It provides a comprehensive coverage of the fundamental concepts of the subject, which will be useful to undergraduate and polytechnic students as well as practising engineers. The book begins with basic solid state topics such as electron dynamics, growth and crystal properties of semiconductors, energy bands, and excess carriers in semiconductors, and then moves on to the study of p-n junctions, bipolar junction transistors, and field effect transistors. This is followed by an analysis of special devices such as opto-electronic devices, power devices, and microwave devices. Finally, the text covers integrated circuits, micro-electromechanical systems, rectifiers, and power supplies.