A Three-Layer Resist Process for T - and T -Gates in High Electron Mobility Transistor Fabrication

Autor: Stéphane Piotrowicz, J. Gruenenpuett, J.C. Jacquet, M. Madel, S. Riedmuller, Sylvain Delage, Ferdinand Scholz, G. Callet, Hervé Blanck, Christophe Chang
Rok vydání: 2018
Předmět:
Zdroj: 2018 13th European Microwave Integrated Circuits Conference (EuMIC).
DOI: 10.23919/eumic.2018.8539955
Popis: By utilizing a novel three-layer resist process, InAIN/AIN/GaN T - and T -gate high electron mobility transistors with 0.1 μm gate lengths and below have been demonstrated. This process is based on direct electron-beam lithography with a single exposure step. Furthermore, the effect of different T -gate shapes on RF power performance is reported. A T -gate shift to the source side of the Ohmic contact, results in lower gate-to-drain capacitance and in higher transistor RF transducer gain G t .
Databáze: OpenAIRE