We've recently started the NPI process for a new assembly using FR-5 laminate. A week ago I'd never heard of FR-5 and don't know much about it. Does anyone have experience with FR-5? Sources of laminate? Key differences from FR-4? Then for my information, what would be the driver to specify this material? Any input on sources should be offline. Thanks in advance. Dick Krug, CSSBB, CSMTPE Lead Process Engineer Sparton Brooksville, LLC 30167 Power Line Road Brooksville, FL 34602-8299 (352) 540-4012 [log in to unmask]