TY - GEN
T1 - N-face GaN-based microwave metal-insulator-semiconductor high electron mobility transistors by plasma-assisted molecular beam epitaxy
AU - Wong, Man Hoi
AU - Pei, Yi
AU - Brown, David
AU - Speck, James S.
AU - Mishra, Umesh K.
AU - Schuette, Michael L.
AU - Kim, Hyeongnam
AU - Balasubramanian, Venkatesh
AU - Lu, Wu
PY - 2010
Y1 - 2010
N2 - This work investigates the use of N-face GaN-based heterostructures as a promising approach to overcome performance limitations commonly encountered in Gaface AlGaN/GaN HEMTs as their frequency of operation extends into the millimeter-wave and beyond. N-face (0001̄)?GaN, with its reversed direction of polarization compared to that of the Ga-face (0001), are well-suited for designing new device structures that address the problems of poor electron confinement and high ohmic contact resistance in highly-scaled GaN transistors. The fabrication and characterization of two N-face MISHEMT structures by plasma-assisted MBE are presented. The devices demonstrated good RF performance at 4 GHz, with the highest continuous-wave output power density and power-added efficiency exceeding 8 W/mm and 70%, respectively. At 10 GHz, an output power density and power-added efficiency of 4.2 W/mm and 49%, respectively, were achieved.
AB - This work investigates the use of N-face GaN-based heterostructures as a promising approach to overcome performance limitations commonly encountered in Gaface AlGaN/GaN HEMTs as their frequency of operation extends into the millimeter-wave and beyond. N-face (0001̄)?GaN, with its reversed direction of polarization compared to that of the Ga-face (0001), are well-suited for designing new device structures that address the problems of poor electron confinement and high ohmic contact resistance in highly-scaled GaN transistors. The fabrication and characterization of two N-face MISHEMT structures by plasma-assisted MBE are presented. The devices demonstrated good RF performance at 4 GHz, with the highest continuous-wave output power density and power-added efficiency exceeding 8 W/mm and 70%, respectively. At 10 GHz, an output power density and power-added efficiency of 4.2 W/mm and 49%, respectively, were achieved.
KW - AlN
KW - Gan
KW - High electron mobility transistor (HEMT)
KW - Microwave power
KW - Molecular beam epitaxy (MBE)
KW - N-face
UR - https://www.scopus.com/pages/publications/84887346130
M3 - Conference Paper published in a book
AN - SCOPUS:84887346130
SN - 1893580156
SN - 9781893580152
T3 - 2010 International Conference on Compound Semiconductor Manufacturing Technology, CS MANTECH 2010
BT - 2010 International Conference on Compound Semiconductor Manufacturing Technology, CS MANTECH 2010
T2 - 2010 International Conference on Compound Semiconductor Manufacturing Technology
Y2 - 17 May 2010 through 20 May 2010
ER -