Method of Exploring HVM Process Corner Cases for Loss and Impedance in High Speed Designs
2023 IEEE 32ND CONFERENCE ON ELECTRICAL PERFORMANCE OF ELECTRONIC PACKAGING AND SYSTEMS, EPEPS(2023)
Abstract
High-speed signals are becoming more sensitive to impedance and loss variations. In this paper, we show that the correlation between factors that impact loss and impedance is weak. A methodology is proposed to find corner case loss and impedance models for a given stack-up using an inverse stack-up optimization problem (ISOP) [1]. By using this proposed approach, corner case loss and impedance models can be derived in seconds. The proposed approach results outperform the worst-case Monte Carlo analysis with uniform distribution in all the experiments in terms of accuracy and speed-up.
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Key words
ISOP,Surrogate models,Harmonica
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