A zero insertion force (ZIF) connector is a commonly used electrical connector that makes a connection between a flexible printed circuit (FPC), which is a type of flexible cable, and a printed circuit board (PCB). Due to part and assembly tolerances, the FPC is typically oversized (made longer) to ensure its electrical connectivity to the ZIF connector. As a result of the oversizing of the FPC, and due to the ZIF connector not being able to pass through the FPC, the FPC bends or buckles, forming a loop. The loop causes a loss of space within a device that uses the ZIF connector and a loss in reliability. This disclosure describes a ZIF connector that eliminates the FPC loop, resulting in optimized space within the PCB as well as increased reliability.
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Rosen, David, "ZIF connector with open end for FPC pass-through", Technical Disclosure Commons, (November 06, 2019)