Part of the rigid-flex circuit board resource.
Application names are a starting point for requirements. The useful inputs are the mechanical envelope, operating conditions, assembly sequence, electrical function, and verification plan. Explore the guides below, then connect the application to the design rules, materials, and partner capability review.
Designing for medical devices
Cleaning or sterilization exposure, where applicable, must be defined for the actual device. Do not assume a material’s assembly-temperature tolerance establishes resistance to a repeated cleaning process.
Designing for aerospace and defense
Specify temperature range, vibration, shock, humidity, and any other environment that matters to the intended assembly. A material family name does not establish qualification for the application.
Designing for automotive electronics
Temperature cycling, vibration, exposure, and mounting constraints need a product-specific validation plan. A board that folds during installation has a different duty from an interconnect that moves throughout vehicle operation.
Designing for wearable electronics
Movement from handling or normal wear can turn an intended installation bend into repeated stress. Define the final enclosure support and identify locations where the product can twist or compress the circuit.
Designing for industrial control and sensing
Distinguish a fixed installed interconnect from a moving cable path. Repeated machine motion requires a deliberate mechanical design and qualification; an integrated rigid-flex assembly is not automatically a substitute for every dynamic cable.
Designing for consumer electronics
Drop events, enclosure deflection, user handling, and repeated opening can introduce stress not present in a flat electrical test. Evaluate the board in the intended assembly state.
Designing for camera modules
Define how the rigid islands locate the sensor, lens-related features, and connectors. Flex forces and assembly restraint should not be allowed to change a critical mechanical alignment unexpectedly.
Designing for drone electronics
Vibration, impact, enclosure support, and the thermal environment all need consideration. Reducing connector count can simplify packaging, but it does not remove the need for mechanically representative testing.