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Projekt Titel
Via Array Modeling for Application in Fast, Energy-Efficient Digital Systems
Startdatum
April 1, 2010
Enddatum
July 31, 2014
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Institut
Projektleitung
Mitarbeitende
This thesis studies the application of physics-based via models for an efficient modeling of large via arrays in multiglayer PCBs. Three main aspects are addressed: the study and improvement of the modeling accuray, the study and improvement of the model efficiency, and the application of the model in a systematic evaluation of via array design alternatives for high speed links.
With regard to the modeling accuracy, the application of an improved local field model is identified as a suitable way to improve the model accuraxy for the simulation of via arrays, especially at frequencies above 20 GHz. With the improved model, an accurate simulation of via arrays with a pitch of 60 mil or larger becomes possible in the frequency range up to 50 GHz. Improvements with regard to the model efficiency lead to a reduction of calculation times which allows to carry out fast design explorations for smaller via arrays on a stadard PC. Finally, an approach for the systematic design ebaluation is presented which intefrates the adventages of the efficient physics-based via model in a larger concept. With the approach, a quantitative comparison of design alternatives bevomes possible that takes into account the impact of design changes on both signal integrity and energy efficiency for the complete system.
With regard to the modeling accuracy, the application of an improved local field model is identified as a suitable way to improve the model accuraxy for the simulation of via arrays, especially at frequencies above 20 GHz. With the improved model, an accurate simulation of via arrays with a pitch of 60 mil or larger becomes possible in the frequency range up to 50 GHz. Improvements with regard to the model efficiency lead to a reduction of calculation times which allows to carry out fast design explorations for smaller via arrays on a stadard PC. Finally, an approach for the systematic design ebaluation is presented which intefrates the adventages of the efficient physics-based via model in a larger concept. With the approach, a quantitative comparison of design alternatives bevomes possible that takes into account the impact of design changes on both signal integrity and energy efficiency for the complete system.