11:19 〜 11:21 [PS-4-18] High Frequency AlGaN/GaN T-gate HEMTs on Extreme Low Resistivity Silicon Substrates C.-H. Li1,○Y. Liu1, W.-C. Hsu2, C.-Y. Chuang2, J.-Z. Liu2, S.S.H. Hsu1 (1.National Tsing Hua Univ. (Taiwan), 2.Global Wafers Corp. (Taiwan))