Engineered for applications where reliability meets precision, the PCBSync 4-Layer Rigid-Flex PCB delivers the structural integrity of rigid boards with the dynamic flexibility modern designs demand.
Built for Performance Featuring a true 4-layer stackup, this rigid-flex board provides superior signal integrity, reduced EMI, and efficient power distribution — making it ideal for aerospace, medical devices, wearables, and compact consumer electronics where space and reliability are non-negotiable.
FR4 Stiffener for Structural Confidence Strategic FR4 stiffeners are applied to connector and component zones, reinforcing critical areas without sacrificing the board’s flexible regions. This hybrid construction eliminates the need for additional mounting hardware, reduces assembly complexity, and extends the product’s mechanical lifespan under repeated flex cycles.
Immersion Silver Surface Finish The Immersion Silver (ImAg) finish offers an ultra-flat, solderable surface with exceptional electrical conductivity. Perfect for fine-pitch components and high-frequency applications, it ensures consistent solder joint quality, excellent shelf life, and RoHS-compliant performance — all without the brittleness of HASL or the cost premium of ENIG.
Why Choose PCBSync?
- ✅ 4-layer construction for complex routing in compact form factors
- ✅ FR4 stiffeners on rigid zones for secure component mounting
- ✅ Immersion Silver finish for flat, oxidation-resistant pads
- ✅ IPC Class 2 & Class 3 manufacturing standards
- ✅ Customizable flex bend radius, layer count, and board dimensions
- ✅ Fast prototyping to high-volume production
Whether you’re designing a next-generation medical sensor, a ruggedized IoT device, or a space-constrained industrial controller, PCBSync’s 4-Layer Rigid-Flex PCB gives your product the edge it deserves.
Request a custom quote or upload your Gerber files today.
