The book describes the development of semiconductor manufacture on a worldwide basis, from its early beginnings to date. Its approach is wide-ranging, encompassing early experimental work rooted in nineteenth century science, and it includes a brief historical review of the thermionic valve, which played an important part in the genesis of the semiconductor industry. The contents include a description of the establishment and subsequent development of semiconductor manufacture within the various nation states. Although not a technical treatise, major device types and manufacturing processes used in semiconductor fabrication are outlined. Factors affecting the performance of the industry within the major national participants are discussed, and the relationship of the industry to science and technology is also considered. The book should be of interest to scientists and engineers, technical historians, and indeed anyone with an interest in the development of a modern, all-pervading technology.