Herbert Kroemer: Electron Devices Legend

Herbert Kroemer, who passed away on 8 March 2024 at the age of 95, was a towering figure within the electron device research and development community for more than five decades. His work has had a massive influence on both electronic and optoelectronic device development. Every cell phone, every fiber optic link bears his stamp. Many foundational concepts of our electron devices world were first introduced by Herb. He was the earliest and most accomplished advocate of heterojunctions between different semiconductor materials for the improvement of devices, and heterojunctions have become one of the central themes of semiconductor research.