Quality Systems: Look for RoHS and REACH compliance, and ensure they have UL Certification. More importantly, ask how they handle material traceability for Class 3 assemblies.
Why POE for Your Rigid Flex PCB Assembly
At POE, we treat rigid flex not as a specialty item, but as a core competency. Our approach is built on three pillars: Process Control, Engineering Partnership, and Supply Chain Integrity.
Process Control: We don't skip pre-baking. We don't guess on reflow profiles. Our IPC-certified operators follow documented procedures that align with IPC-A-610 Class 3 workmanship standards.
Engineering Partnership: We conduct a rigorous DFA review before any material is cut. We've seen too many designs where a via was placed one millimeter too close to a bend line—a mistake that costs thousands once the boards are fabricated. We catch those errors in the Gerber review.
Supply Chain Integrity: Holding ISO 13485:2016 and ISO 9001:2015 certifications, we manage a qualified supply chain for polyimide materials, ensuring that your production run doesn't stall due to material shortages.
Compliance: Our assemblies meet IPC J-STD-001, RoHS, REACH, and UL requirements, ensuring global market access.
We have supported complex rigid flex builds for medical wearables and automotive sensor modules—projects where failure was not an option. We understand that the "cheapest" bid often becomes the most expensive when you factor in field returns.
FAQ
Q: What is the minimum bend radius for rigid flex?
A: It depends on the layer count and copper weight. For static applications, we typically recommend a minimum bend radius of 6 to 10 times the thickness of the flex layer. For dynamic bending (flex-to-install), it can be higher. We verify this during DFM.
Q: Can components be mounted on the flexible section?
A: Generally, no. Solder joints on flex are prone to cracking under stress. Components should be mounted on rigid sections or on stiffeners. Placing components directly on flex is a common design flaw we flag early.
Q: Why is pre-baking so critical?
A: Polyimide absorbs moisture. If not baked out, this moisture turns to steam during reflow, causing internal delamination. It's a simple step that is surprisingly overlooked in low-cost assembly houses.
Q: What IPC standards apply?
A: Key standards include IPC-6013 (Qualification for Flex/Rigid-Flex), IPC-6012 (Rigid sections), IPC-A-610 Class 3 (Acceptability), and IPC-2223 (Design).
Q: How long does it take?
A: Expect lead times to be 30–50% longer than standard rigid PCBs due to the sequential lamination and handling requirements. We provide detailed schedules during quoting.
Ready to Start Your Rigid Flex PCB Assembly Project?
If you're evaluating rigid flex, the most expensive mistake you can make is discovering a design flaw after fabrication.
Send us your design files (Gerbers, BOM, and stack-up details). We'll perform a comprehensive DFM/DFA review focused specifically on rigid-flex transition zones, bend radius validation, and material selection. Within 24 hours, you'll receive a fixed-price quote and a technical assessment that outlines the risks and opportunities in your design.
Let's build something that lasts. Contact POE today.
Email: all@poe-pcba.com
Whatsapp: 85292069596
Tel: 0755-25312250/ +8613798543496
Factory Address: Floor 3, Jinyuan Industrial Park, No. 56, Tangtou Avenue, Shiyan Town, Baoan District, Shenzhen China
