Hello TechNet I have observed tons of conversation on Lead Free issues and speculation which is great, however, I have a question concerning the replacement of board material. Specifically FR4. I have heard that there is concern surrounding the flame retardant used in FR4 and therefore FR4 may have to be replaced by some other board material. Polyimide may be an option, but what will that do to cost. Is polyimide more expensive? Are there other options? Ron Hollandsworth Ops Task Leader AME Group ITT