This book comprehensively discusses the basic knowledge of semiconductor physics. It consists of 13 chapters. The main contents include: lattice structure and electronic states of semiconductors; impurity and defect energy levels; statistical distribution of carriers; scattering of carriers and conduction issues; generation, recombination, and motion laws of non-equilibrium carriers; pn junctions; contact between metals and semiconductors; semiconductor surfaces and MIS structures; semiconductor heterostructures; physical phenomena in semiconductors such as photo, thermal, magnetic, and piezoresistance effects, as well as amorphous semiconductors. The book provides accompanying teaching resources such as a syllabus and electronic courseware (PPT). It can be used as a textbook for courses related to semiconductor physics in universities' integrated circuit science and engineering and other relevant majors, and it can also serve as a reference for professionals in related fields.