For an extensive discussion of the propagation delay issues in Microstrip, see "Microstrip Propagation Times, Slower Than We Think" Available from http://www.mentor.com/pcb/techpapers/index.cfm? Doug Brooks > Doug Brooks' new book, "Signal Integrity Issues and Printed Circuit Board Design" has just been released by Prentice Hall. See details and ordering info at www.ultracad.com ______________________________________________________________________________ ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu