Germanium p-i-n photodetector on silicon substrate

摘要

Devices useful, for example, as detectors in telecommunications systems have been formed utilizing a specific structure. In particular, a p-i-n device is fabricated on a silicon substrate having the necessary circuitry for signal processing. This p-i- n device is produced by depositing an intermediary region having a compositional gradient on this substrate and forming a germanium based p- i-n diode on the intermediary region.