JoAnn, In regards to your question on what is required to do a board here is a list of things we look at: impedance controlled line/strip/microstrip/dual stripline differential pairs/tolerance delay lines/tolerance EMI considerations high speed considerations socketed components components on one or both sides of board will it be palletized sources and terminators are identified As you can see there are many things to look for, (I know I haven't covered them all), and many of them may not apply to your product. Hope this has been of some assistance. ROBERT BUTTERWORTH SR PWB DESIGNER ADC BROADBAND COMMUNICATIONS 11 FAIRFIELD BLVD WALLINGFORD, CT 06492 TEL: 203-630-5755 EMAIL: [log in to unmask]