Abstract
Recently we have demonstrated the thermal oxidized TiO2/Al2O3 as gate dielectric for AlGaN/GaN metal-oxide-semiconductor high-electron-mobility-transistors (MOS-HEMTs) with enhanced breakdown voltage of 490 V compared with 60-100 V breakdown voltage for normal HEMTs. The characteristics of GaN-based MOS-HEMTs with TiO2/Al2O3 gate dielectrics are measured and simulated using Sentaurus Device Software. The significant improvement of breakdown voltage of MOS-HEMTs with TiO2/Al2O3 gate oxide was analyzed. It is shown that the effect of TiO2 on surface electric potential distribution results in the improvement of breakdown voltage. This work will represent a solid basis for improvement of breakdown voltage and enhancement of the device reliability.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
