Title :
–III-Nitride RF Switch With Capacitively Coupled Contacts
Author :
Koudymov, Alexei ; Pala, Nezih ; Tokranov, V. ; Oktyabrsky, Serge ; Gaevski, Mikhail ; Jain, R. ; Yang, J. ; Hu, X. ; Shur, Michael ; Gaska, Remis ; Simin, Grigory
Author_Institution :
Rensselaer Polytech. Inst., Troy, NY
fDate :
5/1/2009 12:00:00 AM
Abstract :
We report on the first metal-oxide-semiconductor AlGaN/GaN radio-frequency (RF) switch with capacitively coupled contacts using a HfO2 layer as the gate dielectric and surface passivation layer. The new insulating-gate RF switch has a lower leakage current and can handle higher RF powers than AlGaN/GaN HFET switches.
Keywords :
aluminium compounds; gallium compounds; hafnium compounds; high electron mobility transistors; semiconductor switches; AlGaN-GaN; HFET switches; HfO2; capacitively coupled contacts; gate dielectric; heterostructure field-effect transistors; metal-oxide-semiconductor; radio-frequency switch; surface passivation layer; $hbox{HfO}_{2}$; AlGaN/GaN; capacitive coupling; high- $k$ dielectric; radio-frequency (RF) switch;
Journal_Title :
Electron Device Letters, IEEE
DOI :
10.1109/LED.2009.2017284