PCB & PCBA Frequently Asked Questions
A centralized engineering knowledge base addressing common questions across PCB manufacturing, PCBA assembly, materials, processes, and reliability-driven design decisions.
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Flex & Rigid Flex PCB Assembly
What is the main difference between flex and rigid-flex PCB assembly?
Flex PCBs are fully flexible circuits, while rigid-flex PCBs combine rigid and flexible layers to integrate both structural stability and flexibility in one design.
What materials are used for flexible and rigid-flex boards?
We typically use polyimide (PI), PET, and hybrid laminates with adhesiveless copper foils for enhanced flexibility, heat resistance, and signal performance.
How do you ensure the reliability of flex-to-rigid connections?
We use controlled lamination, hot-bar bonding, and reinforced stiffeners at bend transition zones, combined with bend-cycle and vibration testing for qualification.
Can you perform SMT on flexible circuits?
Yes. Our vacuum-assisted SMT lines and custom tooling stabilize flexible materials during pick-and-place and reflow, ensuring accurate, distortion-free assembly.
What testing methods are used for flex and rigid-flex assemblies?
We perform AOI, X-ray, flying probe, electrical continuity, and dynamic bend tests to verify both solder integrity and mechanical endurance.
Do you support both prototype and mass production of rigid-flex PCBs?
Absolutely. We provide rapid prototyping, pilot runs, and volume manufacturing with seamless process transfer—ensuring consistency across all production stages.
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