We process no Teflon boards.
Companies, such as Rogers and Taconic, make laminates of Polytetrafluoroethylene [PTFE] er �Teflon�. Common �Teflon� laminates are: * Woven glass / PTFE * Random microfiber glass / PTFE * Ceramic / PTFE * Woven glass / ceramic / PTFE * Woven quartz / PTFE
Lots of fabricators use �Teflon� laminates to make boards. Poly Circuits and PC Dynamics are among fabricators that specialize in �Teflon� boards. �Teflon� boards can be: * Two sided. * Multilayer. * Mixed dielectric including either different layers of material types or intermixing of two different substrates on the same layer. * Metal backed or cored.
We talked about building a woven glass / PTFE board a while ago. As I recall: STORAGE: No issues CONVEYOR: No Issues USE OF PALLETS: No Issues MASS SOLDERING: No Issues HAND SOLDERING / REWORK: No Issues. Although this IS the dicest area. The copper cladding on the dielectric limits the temperature exposure of the laminate. If you lift a pad and then rework it, you probably will change the circuit behavior.
Comparing woven glass / PTFE to FR-4: * CTE [x, y, z] are similar. * Copper bond strength is similar.
Consider talking to the fabricator and some of their customers.
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