4 Layer Rigid-Flex PCB Production Record #RFP-20260113-004
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| PCB Type | Rigid-Flex PCB | Quantity | 5 pcs |
| Layers | 4 Layers | Board Type | Single PCB |
| Dimensions | 135 x 150.5 mm | Copper Weight | 1OZ |
| Thickness | 1.6 mm | Min Track / Spacing | 6/6mil↑ |
| Surface Finish | ENIG (Immersion Gold) | Min Hole Size | 0.3mm↑ |
| Solder Mask | Green | Silkscreen | White |
This production record covers five 4-layer rigid-flex PCBs, each measuring 135 × 150.5 mm with 1.6 mm overall thickness and 1 oz copper. The design used a conventional 6/6 mil trace and spacing geometry, 0.3 mm minimum holes, green solder mask, and white silkscreen. Immersion gold ENIG surface finish was selected to ensure stable contact resistance across both rigid and flexible zones. Material preparation and layer stack alignment received close attention to maintain registration between the FR4 rigid sections and the polyimide flex layers during bonding.
Manufacturing followed a sequence of inner layer imaging, high-pressure lamination, flex-rigid lamination, and controlled depth routing to create clean bend transitions without damaging the flex circuitry. Solder mask application was followed by electroless nickel deposition and immersion gold plating. Dynamic flex reliability testing was performed to confirm the circuit integrity under repeated bending, while full electrical testing verified net continuity and isolation on every board.
The entire order was completed in 14.8 days. All five rigid-flex PCBs met the specified requirements, demonstrating consistent layer registration and reliable flex-to-rigid interfaces suitable for compact electronic assemblies.
4 layer rigid-flex constructions deliver high density circuitry with mechanical flexibility for aerospace, medical, and industrial applications.
Master the complexities of Rigid-Flex PCB Design with this 2,500-word guide. Explore stack-up symmetry, bend radius calculations, via optimization, and cost-effective manufacturing strategies.
| Order ID | PCB Type | Layers | Dimensions | Solder Mask | Surface Finish | Quantity | Action |
|---|---|---|---|---|---|---|---|
| RFP-20260429-041 | Rigid-Flex PCB | 4 | 119.87 x 109.66 | Green | ENIG (Immersion Gold) | 5 | View detail |
| RFP-20260427-010 | Rigid-Flex PCB | 4 | 131.97 x 115.05 | Green | ENIG (Immersion Gold) | 260 | View detail |
| RFP-20260401-039 | Rigid-Flex PCB | 4 | 138 x 128 | Green | ENIG (Immersion Gold) | 5 | View detail |
