Rigid-flex PCB systems have additional failure modes compared with traditional PCBs caused by interpanel contact that may cause shearing and frictional forces to develop, thus endangering exposed mounted components. 2).Ĭurrent literature discussing modeling approaches for rigid-flex PCB is sparse, and those analyzing dynamic properties are an even smaller subset. PUFFER is designed to overcome geologic obstacles and compress to explore hard-to-reach areas (see Fig. PUFFER is a small, origami-inspired rigid-flex PCB robot that incorporates Nomex TM hinges in addition to flexible circuitry. Recently, NASA’s Jet Propulsion Laboratory (JPL) has created a rigid-flex PCB robot called the Pop-Up Flat Folding Explorer Robot (PUFFER) which utilizes rigid-flex technology. This technology is widely used for manufacturing mobile or wearable devices, military electronics, and medical robotics. Rigid-flex PCB is a hybrid of flexible circuits laminated to conventionally rigid PCB (see Fig. In designs that involve complex geometries or moving components, the addition of flexible (flex) circuits eliminates the need for connecting cables, allowing for weight reduction, increased durability, space optimization, and improved signal transmittance. Flexible circuits have significantly expanded the boundaries of design space for electronic devices by permitting circuit geometries previously unthinkable with rigid printed circuit boards (PCB).
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