Electronic Materials and Devices provides an introduction to the electronic properties of materials that is suitable for undergraduate students in the engineering disciplines. The book provides a knowledge of material properties essential to understanding the operation of modern technology, such as semiconductor and optoelectronic devices, micro-mechanical systems (MEMS), magnetic memories and devices, and superconducting devices. A detailed physical insight into the microscopic mechanisms that form the cornerstone for these technologies is emphasized, and mathematical treatments are at an appropriate level of difficulty. While this text serves primarily as an excellent introduction for undergraduates, its comprehensive coverage of different solid-state technologies is also intended to be a useful reference for graduate students and professionals in the field of electronic engineering. The book is arranged to first introduce the necessary solid-state concepts of crystalline material, and then cover the important transport concepts. These concepts are used to introduce semiconductor devices, including p-n junctions, bipolar transistors, MOSFETs, HEMTs, and MESFETs. An introduction to fabricating these devices in planer technology is also included. Dielectric and magnetic properties are covered, including new ideas such as MEMS and giant magnetoresistance, as are opto-electronic and superconducting devices.