Transport mechanism of reverse surface leakage current in AlGaN/GaN high-electron mobility transistor with SiN passivation*
Zheng Xue-Fenga),b)†, Fan Shuanga),b), Chen Yong-Hea),b), Kang Dia),b), Zhang Jian-Kuna),b), Wang Chonga),b), Mo Jiang-Huic), Li Liangc), Ma Xiao-Huab), Zhang Jin-Chenga),b), Hao Yuea),b)
       
Variations of reverse surface leakage current with gate bias voltage ( V G1) at temperatures ranging from 298 K to 423 K. The device under test is an SiN passivated HEMT with a 20-nm-thick Al0.3Ga0.7N barrier layer.