This book encapsulates the fundamental quantum processes of importance in the physics and technology of semiconductors in a relatively informal style that has been found to be attractive for graduate courses. This fourth edition is expanded by the addition of new chapters on quantum transport, semi-classical transport and space-charge waves, extending the discussion to statistical, many-particle behaviour in transport phenomena. The author has also taken the opportunity to update other sections. As with previous editions the text restricts its attention to bulk semiconductors. The account...