Ge gate stacks based on Ge oxide interfacial layers and the impact on MOS device properties
Ge gate stacks by exposing oxygen plasma to ALD Al2O3/Ge were proposed. GeOx formed between Al2O3 and Ge significantly reduces interface state density. High electron mobility of 690cm2/Vs in Ge nMOSFETs with EOT of 0.70.8nm. High hole mobility of 546cm2/Vs in Ge p-MOSFETs with EOT of 0.70.8nm.
interface interface state density mobility germanium mosfets