OEM/ODM 4-Layer Rigid-Flex PCB with ENIG Surface Finish Polyimide Coverlay
Blue Oil Rigid Flex PCB Board
,Soft Hard Bonding PCB Board
Get Your Fully Customizable 4-Layer Rigid-Flex PCB Blue Solder Mask for Ultimate Quality
Need custom PCBs that fit your unique design? XingQiang’s 4-layer rigid-flex PCBs are fully customizable, with our signature blue solder mask for quality and visibility. We combine FR-4 rigidity for stability with polyimide flexibility for 3D integration, delivering tailored solutions for medical, industrial, and consumer electronics—fast, reliable, and built to your specs.
Core Characteristics:
- Structural Versatility: Integrate rigid sections for component mounting and flexible segments for bending, folding or twisting. They adapt to compact or irregular device spaces without compromising connection stability.
- Reliable Connectivity: Eliminate the need for connectors or wires between rigid parts, reducing assembly errors and failure risks. The integrated structure ensures consistent signal transmission even in dynamic environments.
- Space & Weight Optimization: Replace bulky rigid PCB assemblies with streamlined designs. They save up to 50% of installation space and reduce overall device weight, ideal for portable or miniaturized products.
- Enhanced Durability: Flexible layers resist vibration, shock and repeated bending, extending product lifespan. Rigid areas provide robust support for heavy components like chips or capacitors.
- Improved Signal Integrity: Minimize signal loss and electromagnetic interference (EMI) through shortened interconnections. The design maintains signal stability in high-frequency or high-speed applications.
How can we star our project?
Design File Requirements: We utilize RS-274X Gerber files and NC Drill files for all custom orders.
Please make sure your submission includes:
• Copper Layers: All signal and plane layers for both rigid and flex regions.
• Solder Mask: Top and bottom solder mask layers.
• Silk Screen: Component designators and assembly notes.
• Mechanical Layers: Board outline, tooling holes, and keep-out zones.
• Drill Files: Excellon format for plated and non-plated holes.
• Stack-up Info: A detailed layer stack-up drawing (Gerber or PDF) showing the flex/rigid transitions and material types.
• Impedance Spec: If impedance control is required.
Factory showcase
PCB Quality Testing
Certificates and Honors
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AThe outer box was slightly dented, but thankfully the internal vacuum packaging and foam corner protectors prevented any damage. The boards were completely free of scratches, and the customer service representative even added a note to reinforce the packaging for subsequent shipments.
