Breakdown mechanisms in AlGaN/GaN high electron mobility transistors with different GaN channel thickness values*
Ma Xiao-Huaa), Zhang Ya-Mana), Wang Xin-Huab), Yuan Ting-Tingb), Pang Leib), Chen Wei-Weia), Liu Xin-Yub)†
       
Conduction band energy diagrams of devices with different channel thickness values (50 nm and 150 nm) (a) along the vertical cut-lines passing through the center of the gate and down through the buffer at V DS = 0   V and V GS = 0   V, and (b) along the horizontal cut-lines in the channel/ buffer interface, at V DS = 0   V and V GS = −6   V.