Researchers working at Newcastle University have beaten the record for the highest operating temperature Junction Field Effect Transistor. The team, led by Professor Nick Wright in the School of Electrical, Electronic and Computer Engineering have demonstrated transistor characteristics at 700oC in air. Previously the record for a vertical power transistor was 150oC and for a low power lateral device 600oC. This increase in operating temperature opens up the possibilities for placing electronic systems in a variety of extreme environments from the surface of Venus to nuclear reactors.
I-V characteristics of a normally-on 4H-SiC JFET with measured at (a) 20, (b) 500, and (c) 700oC.
Published: 1st November 2007