Jerry, Here are a bunch of my favorite links. I think the first answers your question. Karl Bates http://www.geocities.com/CapeCanaveral/Lab/9643/TraceWidth.htm http://www.automata.com/engtools/enghome.htm http://www.aracnet.com/~dynacad/download.html http://www.aracnet.com/~gpatrick/pcb.html http://highspeeddigitaldesign.com http://softwareshop.edtn.com/netsim/si/termination/ http://softwareshop.edtn.com/netsim/si/crosstalk/ http://www.polar.co.uk/ http://www.ultracad.com/articles.htm
