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Wendem Beyene, Principal Engineer, MID, Rambus Inc.
Newton Cheng, Signal-Integrity Engineer, Rambus Inc.
June Feng, Signal-Integrity Engineer, Rambus Inc.
Chuck Yuan, Signal-Integrity Manager, Rambus Inc.

This paper presents statistical and sensitivity analysis techniques of voltage and timing budgets of interconnect systems. It is based on the Taguchi method that uses orthogonal arrays to systematically and efficiently perform interconnect tolerance analysis. The method can be used to study the sensitivity of the voltage and timing budgets to various channel parameters. Statistical models are also derived to calculate the distributions of the voltage and timing budgets by sampling the distribution of the channel parameters. The results can be given as a probability density function, histogram, or cumulative distribution function, together with a summary of the statistical data.