Silicon: Evolution and Future of a Technology - Paul Siffert, Eberhard Krimmel - Google Books

https://books.google.de/books?id=ATFo8Pr67uIC&pg=PA439#v=onepage

Silicon. The evolution and development of humanity are commonly charac terized by the key words Stone Age, Bronze Age, and Iron Age; that is, characterized by materials. Curse or benefit to mankind? The discovery and utilization of semiconductors,…