How to Select the Best Materials for Your Flexible PCB Designs
Flexible printed circuit boards (Flex PCBs) have revolutionized the electronics industry. Now we can pack the circuit in a small housing space with highly compact, lightweight, and flexible form factors. FPCs are everywhere from wearable devices to medical implants and aerospace systems. These circuits rely on special materials that offer the right balance of mechanical flexibility and electrical performance. When designing a Flex PCB, choosing the right combination of substrates, adhesives, and coatings is crucial. We have mastered the rigid PCBs and there is a lot of information, but FPC design still lacks the sector. The materials form the backbone of the circuit and directly influence its reliability. In this article, we explore the most commonly used materials and offer guidelines to help you make material choices based on your application needs.
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