Thermal resistance matrix representation of thermal effects and thermal design of microwave power HBTs with two-dimensional array layout
Chen Rui, Jin Dong-Yue, Zhang Wan-Rong, Wang Li-Fan, Guo Bin, Chen Hu, Yin Ling-Han, Jia Xiao-Xue
       

Three-dimensional schematic structures of HBTs arrays with different layout designs: (a) variation of emitter length in one-dimensional layout design (M HBT cells), (b) variation of emitter spacing in one-dimensional layout design (M HBT cells), (c) two-dimensional parallel layout design (N × M HBT cells).