Size- and temperature-independent zero-offset current-voltage characteristics of GaInP/GaAs collector-up tunnelling-collector heterojunction bipolar transistors
The collector-emitter offset voltage of GaInP/GaAs collector-up tunnelling-collector heterojunction bipolar transistors (C-up TC-HBTs) was found to be almost zero (10–14 mV) and independent of transistor size and temperature. These findings indicate that GaInP/GaAs C-up TC-HBTs are strong candidates for high-efficiency high-power amplifiers.