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Unusual Circuits Call for Unusual Materials
General purpose flexible circuit boards have electronic components that can bend to fit in tight spaces. Most are just one or two layers thick and are meant for "flex-to-install" applications because they tolerate only a few flex cycles. They are found in a variety of medical and consumer products.
More complex flex circuits have three or more layers and are based on specifications that require high flex cycles or must be bent or flexed to fit into unusual packaging. Electrical engineers are getting so creative that many new flex circuits have unusual features and take a little research and experimentation before they are confidently manufactured in quantity.
Key words: HyRelex, flexible circuits, PTFE, Dk, flex-to-install, thin film resistors
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