If you’re developing, producing or selling IoT devices, it might be a good idea for you to get acquainted with the term anisotropic conductive film, or ACF for short. You don’t hear much about it. However, it plays a big role in the manufacture of small printed circuit boards (PCBs), especially when IoT products are made of rigid-flex circuits.
ACF serves as the interconnection between the rigid and the flex circuit. There are other methods for performing this interconnect, but ACF is gaining momentum in the market due to its flexibility and reliability. Connection between the rigid and flex circuits is made using a thin film of polymer and tiny conductive polymer balls. This process requires the right tools and the right levels of temperature, since both circuits can only take a certain amount of temperature.
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