TY - GEN
T1 - High thermal stability AlGaAs/InGaAs enhancement-mode pHEMT using Pd buried-gate technology
AU - Yang, Chih Wei
AU - Lin, Che Kai
AU - Lin, Da Wei
AU - Chiu, Hsien Chin
PY - 2008
Y1 - 2008
N2 - In this work, two enhancement-mode (E-mode) GaAs-based high electron mobility transistors (HEMTs), grown by molecular beam epitaxy (MBE) system, have been fabricated and investigated. We evaporated traditional platinum (Pt) and palladium (Pd) as Schottky contact metals to observe high-temperature performance. Following the 1μm Pt/Ti/Au gate and Pd/Ti/Au gate metals deposition, the devices were thermally annealed at 200°C. Two devices DC and RF performance from 0°C to 100°C were measured. Because the platinum skins into Schottky Layer, the DC and RF characteristics were affected. Experimentally, the palladium gate device showed better DC, RF, and high-temperature characteristics. These advantages suggest that the palladium device is suitable for highspeed and high-power integrated circuit applications.
AB - In this work, two enhancement-mode (E-mode) GaAs-based high electron mobility transistors (HEMTs), grown by molecular beam epitaxy (MBE) system, have been fabricated and investigated. We evaporated traditional platinum (Pt) and palladium (Pd) as Schottky contact metals to observe high-temperature performance. Following the 1μm Pt/Ti/Au gate and Pd/Ti/Au gate metals deposition, the devices were thermally annealed at 200°C. Two devices DC and RF performance from 0°C to 100°C were measured. Because the platinum skins into Schottky Layer, the DC and RF characteristics were affected. Experimentally, the palladium gate device showed better DC, RF, and high-temperature characteristics. These advantages suggest that the palladium device is suitable for highspeed and high-power integrated circuit applications.
UR - http://www.scopus.com/inward/record.url?scp=63249101214&partnerID=8YFLogxK
U2 - 10.1109/EDSSC.2008.4760645
DO - 10.1109/EDSSC.2008.4760645
M3 - 会议稿件
AN - SCOPUS:63249101214
SN - 9781424425402
T3 - 2008 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC
BT - 2008 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC
T2 - 2008 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC
Y2 - 8 December 2008 through 10 December 2008
ER -