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
       

The layout of a 2 × 1 HBTs array.