13:00 〜 15:00 [PS-4-17] Impacts of nitrogen plasma surface cleaning on threshold voltages of AlTiO/AlGaN/GaN MIS devices ○D.D. Nguyen1, Y. Deng1, T. Suzuki1 (1.JAIST (Japan)) https://doi.org/10.7567/SSDM.2019.PS-4-17