Illustrating the concepts of modern physics and quantum mechanics needed for R&D into semiconductors, this textbook first provides the necessary background before going on to cover condensed matter and semiconductors, and how to develop them. Throughout, it emphasizes the development of ideas and concepts and how they are interrelated, deepening an understanding of the concepts by way of repetition. Written with clarity and style in mind, the text covers such new technology as junctions, luminescence, and 3D quantum dots, and each chapter ends with 20-30 exercises.