1. What Are Multilayer PCBs and Why Do They Matter?

Multilayer PCBs are the foundation of today’s complex electronic systems. By stacking multiple conductive layers separated by insulating material, they allow for compact, high-speed, and high-functionality circuit designs. Industries like telecom, aerospace, automotive, and medical rely on multilayer PCBs to deliver performance where single- or double-layer boards fall short.

At BaiShun PCB, we specialize in manufacturing multilayer PCBs that meet the most demanding technical and quality requirements — and we’re continuously pushing the limits.

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2. Our Capability: From 4 Layers to 32 Layers and Beyond

BaiShun’s advanced factory in Jiangxi, China, supports multilayer PCB fabrication from standard 4-layer designs up to high-density 32-layer builds. Our Phase 2 manufacturing line features:

• ✅ 32-layer stack-up capability

• ✅ Min trace/space: 2.5 / 2.5 mil

• ✅ BGA pad size down to 0.15mm

• ✅ Copper thickness up to 6oz

Whether your application requires RF performance, signal integrity, or power distribution, our facility is built to deliver precision and repeatability at scale.

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3. Built for High-Performance Applications

Our multilayer PCBs are trusted across industries where reliability, space optimization, and performance are critical:

• 📡 Telecommunications & 5G base stations

• 🚗 Automotive control systems and EV inverters

• 🏥 Medical devices with fine-pitch components

• ✈️ Aerospace & defense electronics

• 🧠 Industrial IoT & automation systems

We support rigid, flex, and rigid-flex PCB structures, ensuring design flexibility for your specific device or system.

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4. Precision You Can Rely On

Multilayer PCB quality depends not only on the number of layers, but also on the accuracy of hole drilling, layer alignment, plating consistency, and impedance control. BaiShun ensures:

• 🔍 ±0.05mm hole tolerance (PTH/NPTH)

• 🧲 ±7.5% impedance tolerance

• 📐 Outline tolerance of +0.1 / –0.05mm

• 💡 High net-count testing up to 12,000 points

Every board undergoes 100% E-testing, and we comply with UL (UL796), ISO 9001, ISO 14001, and RoHS standards.

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5. A Partner for Growth — Not Just a Supplier

We’re more than just a production factory. Our 400+ team of engineers and technicians support clients from prototype development to mass production, providing DFM advice, custom stack-up engineering, and fast response on urgent jobs.

Our approach:
🚀 “Speed, flexibility, and technical strength” — with full in-house control of surface finishes including ENIG, OSP, HASL, immersion tin, and hard gold.

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✅ Conclusion

Multilayer PCB demands are rising, and BaiShun PCB is leading the charge with scalable, precision-driven solutions trusted by clients worldwide. If you’re looking for a reliable multilayer PCB manufacturer with the technical capability and production scale to grow with your business — let’s talk.

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📞 Contact our Global Account Director to request a quote or technical consultation.