System level approach for assessing and mitigating differential skew for 10+ Gbps SerDes applications

Michael J. Degerstrom, Benjamin R. Buhrow, Bart O. McCoy, Patrick J. Zabinski, Barry K. Gilbert, Erik S. Daniel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Scopus citations

Abstract

Weave-induced skew on printed wiring boards (PWB) for 10+ Gbps SerDes data rates can be very significant. In this paper, we not only investigate weave-induced skew but also look at other sources of skew. We show the weave skew results taken from measurements of three different test boards. Results from a fourth board are presented to examine PWB differential via skew. Measurements from a fifth board are analyzed to determine total channel skew. We propose a budget such that a certain amount of skew can be tolerated with a small increase in channel insertion loss. We then present a case study to project overall performance on PWB yield. We observe a number of anomalies with our test results and suggest additional studies to guard against unpredicted high skew.

Original languageEnglish (US)
Title of host publication2008 Proceedings 58th Electronic Components and Technology Conference, ECTC
Pages513-520
Number of pages8
DOIs
StatePublished - Sep 15 2008
Event2008 58th Electronic Components and Technology Conference, ECTC - Lake Buena Vista, FL, United States
Duration: May 27 2008May 30 2008

Publication series

NameProceedings - Electronic Components and Technology Conference
ISSN (Print)0569-5503

Other

Other2008 58th Electronic Components and Technology Conference, ECTC
CountryUnited States
CityLake Buena Vista, FL
Period5/27/085/30/08

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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