Rigid-flex PCBs combine rigid and flexible sections into one board. They eliminate connectors between sections, reduce assembly cost, and improve reliability in dynamic applications.
When rigid-flex makes sense
- Wearable devices
- Medical implants
- Aerospace systems
- Compact consumer electronics
- Any design with folding or bending
Cost factors
- Number of flex layers
- Bend radius requirements
- Coverlay vs solder mask on flex areas
- Stiffener type and placement
Rigid-flex boards cost more than pure rigid, but the total system cost is often lower because you eliminate connectors and reduce assembly steps.
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