We report a gate-first TiLaO/CeO2 n-MOSFET with an equivalent oxide thickness (EOT) of only 0.56 nm and threshold voltage (Vt) of 0.31 V. This small EOT MOSFET was achieved by employing high-κ CeO 2 interfacial layer with high bond enthalpy (795 kJ/mol) to replace low-κ SiO2 with close bond enthalpy (800 kJ/mol). The cerium silicate can aggressively scale EOT down to sub-0.6-nm EOT region without increasing gate leakage, which is urgently needed for 16 nm technology node.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
- Materials Chemistry