Toward high-performance and reliable Ge channel devices for 2 nm node and beyond

This paper describes our recent research progress on high-mobility Ge-channel n/pFETs. Gate stack, junction and contact are the key challenging components of Ge n/pFETs. Through the improvement of those unit modules, the electrical performance and reliability of Ge FinFET and gate-all-around (GAA) nanowire (NW) pFETs have been improved. Remaining technical challenges for the realization of high performance and reliable Ge n/pFETs will be discussed.