Engineered for Precision. Built for Reliability.
The PCBSync 4-Layer Rigid-Flex PCB with Immersion Gold Finish delivers exceptional performance for demanding applications in aerospace, medical devices, wearables, and industrial electronics. Combining the structural strength of rigid boards with the dynamic flexibility of flex circuits, this advanced PCB solution eliminates the need for connectors and cables — reducing assembly time, minimizing failure points, and saving valuable space.
Superior Layer Construction
With a 4-layer rigid-flex architecture, this PCB supports high-density circuit routing and complex signal integrity requirements. The multi-layer design enables efficient power distribution, reduced electromagnetic interference (EMI), and optimized thermal management — all critical for high-performance electronics in compact form factors.
Immersion Gold (ENIG) Surface Finish
The Electroless Nickel Immersion Gold (ENIG) finish provides a flat, oxidation-resistant surface ideal for fine-pitch SMD components and BGA packages. Unlike HASL alternatives, ENIG ensures consistent solderability, longer shelf life, and superior wire bonding compatibility — making it the preferred choice for precision PCB manufacturing.
Key Features & Specifications
- 4-layer rigid-flex stackup for complex, space-saving designs
- ENIG immersion gold surface finish for reliable solderability
- High flex-cycle durability for dynamic and static flex applications
- Tight tolerances supporting fine-pitch components down to 0.1mm
- Available with controlled impedance for high-speed signal applications
- RoHS-compliant materials for global regulatory standards
Why Choose PCBSync?
PCBSync’s custom rigid-flex PCB manufacturing combines cutting-edge fabrication technology with rigorous quality control. Whether you’re prototyping a next-generation wearable or scaling production for medical equipment, our 4-layer rigid-flex boards deliver the precision, consistency, and reliability your project demands.
Request a custom quote today and experience why engineers worldwide trust PCBSync for their most critical PCB solutions.
