How to Pick the Right Flex PCB Materials for Your Application?

Originally published at: How to Pick the Right Flex PCB Materials? | Sierra Circuits

When selecting flex PCB materials, you need to consider the application type (dynamic or static), stiffener requirements, and routing needs. For instance, choose adhesiveless copper-clad laminate for fine-pitch designs to ensure dimensional stability and good heat resistance. Likewise, use rolled annealed (RA) copper for dynamic applications, and select FR4 or polyimide stiffener when your assembly needs added mechanical strength. Highlights: Use adhesiveless laminates (e.g., DuPont Pyralux AP, Panasonic Felios FX) for high-density flex circuits. Choose RA copper foil for dynamic applications, and align the rolling direction with the primary bend axis. Select polyimide (PI) film as the primary dielectric for…

Thanks for you.. is Blind and buried via will in Flex PCB ?

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