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Start Over Author "Chen, Yuan-Fu" Journal chinese physics b
8 results on '"Chen, Yuan-Fu"'

8. The effects of 60Co γ-ray irradiation on the DC characteristics of enhancement-mode AlGaN/GaN high-electron-mobility transistors.

Author

Chen Chao, Tian Ben-Lang, Liu Xing-Zhao, Dai Li-Ping, Deng Xin-Wu, and Chen Yuan-Fu

Subjects
COBALT isotopes, GAMMA rays, DIRECT currents, GALLIUM nitride, MODULATION-doped field-effect transistors, ELECTRIC conductivity, ELECTRONEGATIVITY, SURFACES (Technology)
Abstract

The effects of 60Co γ-ray irradiation on the DC characteristics of AlGaN/GaN enhancement-mode high-electronmobility transistors (E-mode HEMTs) are investigated. The results show that having been irradiated by 60Co γ-rays at a dose of 3 Mrad (Si), the E-mode HEMT reduces its saturation drain current and maximal transconductance by 6% and 5%, respectively, and significantly increases both forward and reverse gate currents, while its threshold voltage is affected only slightly. The obvious performance degradation of E-mode AlGaN/GaN HEMTs is consistent with the creation of electronegative surface state charges in the source-gate spacer and gate-drain spacer after being irradiated. [ABSTRACT FROM AUTHOR]

Published
2012
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