One Method for Via Equivalent Circuit Extraction Based on Structural Segmentation
As the signal frequency increases, the accurate and fast modeling for vias structure in multi-layer substrate is very important to performance analysis of high speed circuit. According to the skin effect and RL ladder circuit model, the equivalent circuit of via base on structural segmentation is presented in this paper. Vias structure is decomposed into some segmented sub-structure based on the routing layer. The equivalent circuit of each sub-structure is modeled on the basis of RL ladder circuit and numerical calculation method. And then, a complete equivalent circuit of the entire vias structure is modeled. Meanwhile, the equivalent circuit model of two adjacent via structure is established with coupling capacitance and coupled inductor. Finally, the simulation results of the equivalent circuit model in this paper are agreed to the results gained from HFSS within 8GHZ.
Keywords: Vias, Equivalent circuit, Ladder circuit, Structural segmentation
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ABOUT THE AUTHORS
Yuling Shang
Yuling Shang is a post-doctoral fellow in Jiangsu University and an associated professor in Guilin University of Electronic Technology. She received her Ph.D. in Circuits and Systems from Xi\'an University of Electronic Science and Technology in 2010. Her research interests focus on the signal integrity, fault diagnosis and testing technique. She has authored over 10 professional and scholarly publications in famous international journal or international conference in the specialized field of the signal integrity, fault diagnosis and testing technique.
Chunquan Li
Chunquan Li is a professor in Guilin University of Electronic Technology. He was a visiting scholar of North Carolina State University. He received his Ph.D. in Mechanical Engineering from Shanghai University in 2010. He has authored over 40 professional and scholarly publications in famous international journal or international conference in the specialized field of the manufacturing engineering and automation.
Huaqing Xiong
Huaqing Xiong is a postgraduate in Guilin University of Electronic Technology.His current research interests focus on signal integrity and manufacturing engineering.
Yuling Shang
Yuling Shang is a post-doctoral fellow in Jiangsu University and an associated professor in Guilin University of Electronic Technology. She received her Ph.D. in Circuits and Systems from Xi\'an University of Electronic Science and Technology in 2010. Her research interests focus on the signal integrity, fault diagnosis and testing technique. She has authored over 10 professional and scholarly publications in famous international journal or international conference in the specialized field of the signal integrity, fault diagnosis and testing technique.
Chunquan Li
Chunquan Li is a professor in Guilin University of Electronic Technology. He was a visiting scholar of North Carolina State University. He received his Ph.D. in Mechanical Engineering from Shanghai University in 2010. He has authored over 40 professional and scholarly publications in famous international journal or international conference in the specialized field of the manufacturing engineering and automation.
Huaqing Xiong
Huaqing Xiong is a postgraduate in Guilin University of Electronic Technology.His current research interests focus on signal integrity and manufacturing engineering.
