Prediction of Losses Caused by Roughness of Metallization in Printed-Circuit Boards

In this paper the effect of metal roughness on the total loss, the extracted tanδ, and signal integrity of typical interconnections found in printed-circuit boards is extracted from measurements on three different materials. The differing characteristics of the roughened metal cross sections is highlighted, and a simplified, practical, two-dimensional, causal, broadband modeling methodology is shown.

By: A. Deutsch; C. W. Surovic; R. S. Krabbenhoft; G. V. Kopcsay; B. J. Chamberlin

Published in: RC23872 in 2006

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