Optimization of Signal Integrity in High-speed PCB Design under Thermal Stress Conditions
Keywords:
Signal Integrity, Thermal Stress, Printed Circuit Board, High-Speed Electronics, Data Transmission, Electromagnetic Interference, Thermal Cycling, Design Optimization, Finite Element AnalysisAbstract
With the ever-increasing demands for higher data rates and component miniaturization in electronic systems, signal integrity (SI) has become a crucial aspect in printed circuit board (PCB) design. This study investigates the impact of thermal stress on SI performance, guided by empirical methodologies using finite element analysis (FEA) and time-domain reflectometry (TDR) evaluations. High-speed interconnects subjected to varying thermal conditions were modeled and analyzed using MATLAB R2023a and HyperLynx. The empirical findings reveal a significant correlation between temperature fluctuations and signal degradation, with a maximum observed delay of 12.4% at elevated temperatures. These results highlight the necessity for adaptive design strategies that enhance robustness against thermal fluctuations, ultimately improving the reliability of high-speed electronic systems.
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