A discussion of recent advances, this book covers the scientific and technological exploration of the applications, properties, and processes of GaN, GaAs, and other III-V compound semiconductor devices within Si-based technology. It includes a broad range of topics, from fundamental material properties and materials integration to demonstration and industrial devices. The book also contains discussions of materials and devices, including their basic physical and chemical properties, their mechanisms, how to measure their properties, and how to fabricate them.