Electronic Components Sourcing

Sourcing high-quality electronic components is essential to create quality products for your brand. Choosing the right parts ensures that your products are functional and useful for end users.

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Sales@PCBsync.com

Prototype Assembly

Our prototype runs are often a mix of large BGAs and tiny 0201 components, and we’ve had issues with other assembers on yield. PCBsync’s assembly team delivered a perfect first-run success. The board was pristine, the solder joints were impeccable under the microscope, and everything worked straight out of the box. Their attention to detail in the assembly process saved us weeks of debug time. They are now our go-to for critical prototype assembly.

- Maria Rodriguez CTO

Electronic Manufacturing

Scaling from hundreds to tens of thousands of units for our smart home device presented huge supply chain and manufacturing challenges. PCBsync’s full electronic manufacturing service was the solution. They didn’t just build the PCB; they managed the entire box-build, sourced all components (even during shortages), and implemented a rigorous quality control system that drastically reduced our field failure rate. They act as a true extension of our own production team.

- Ben Carter Operations Director

4L Rigid-Flex Circuit Board – SMT Assembly Both Sides, Fine Pitch BGA

Product Details

The 4L Rigid-Flex Circuit Board from PCBSYNC integrates complex multilayer rigid circuitry with flexible polymer layers to eliminate internal connectors, reduce weight, and maximize space. This high-density interconnect (HDI) substrate supports double-sided SMT assembly and fine pitch BGA components, allowing developers to pack ultimate processing power into ultra-compact form factors. Built to strict IPC Class 2 or Class 3 standards, this board ensures reliable signal integrity and mechanical endurance under continuous vibration or tight-radius installations.

Key Features of the 4L Rigid-Flex Circuit Board

Layer Count: 4-Layer hybrid stack-up (2 rigid layers, 2 inner flexible layers).
Assembly Capabilities: Precision dual-sided Surface Mount Technology (SMT) with automated pick-and-place.
Component Support: Compatible with fine pitch BGA, micro-BGA, 0201, and 01005 passives.
Materials: Polyimide (PI) flex cores, FR4 rigid base, high-Tg resins, and halogen-free options.
Surface Finish: Electroless Nickel Immersion Gold (ENIG) for superior solderability and oxidation resistance.
Minimum Trace/Space: 3 mil / 3 mil (0.075 mm) for high-density routing.
Quality Control: Automated Optical Inspection (AOI), 3D X-ray inspection (AXI) for BGA voids, and flying probe testing.

Applications

Medical Electronics: Compact diagnostic tools, implantable devices, and portable patient monitors.
Aerospace & Defence: Ruggedized avionics, miniature telemetry systems, and guidance control modules.
Consumer Tech & Wearables: Smartwatches, AR/VR headsets, and foldable IoT hardware.
Automotive Systems: Camera modules, ADAS sensors, and space-restricted engine control units.

Why Choose PCBSYNC

PCBSYNC is a professional PCB fabrication, PCBA, and EMS manufacturer delivering precision-built electronics for aerospace, medical, automotive, industrial, and smart energy applications. We handle everything from rapid prototyping to mass production — including rigid, Flexible PCB, and rigid-flex PCBs, full turnkey assembly, component sourcing, AOI and X-ray inspection, and OEM/ODM support. Reliable boards. Consistent quality. From prototype to production — PCBSYNC.

Contact our technical sales team or submit your Gerber files today to receive a comprehensive DFM review and quick-turn quote.