In the flexible printed circuit board manufacturing process, a flex circuit coverlay (aka coverfilm) is used to encapsulate and protect the external circuitry of a flexible circuit board.
A flexible circuit coverlay serves the exact same function as solder mask that is used on a rigid printed circuit board. The difference with a flex coverlay is the needed element of flexibility and durability it provides to the flex PCB design.
Considering using a flexible printed circuit board (flex PCB) in your next project? Flex circuits offer several advantages, whether you plan to use them in a future project or for revamping your existing designs. Here we detail some of the most impactful advantages of flex PCB, including packaging, reliability, capabilities, and cost savings.
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