Ring PCB Factory – Custom Multilayer PCB, SMT Assembly & Turnkey PCBA Solutions
Ring PCB is a professional source factory specializing in custom multilayer printed circuit board solutions and advanced multilayer PCB manufacturing. With over 17 years of industry experience, we combine precision engineering, strict quality management, and fast delivery to serve global customers across diverse industries.
Our company operates two state-of-the-art facilities in Shenzhen and Zhuhai, with more than 5,000㎡ of modern production space and a dedicated workforce of 500 employees. From PCB fabrication to SMT assembly and full turnkey PCBA services, we provide a one-stop solution that ensures efficiency, reliability, and competitive pricing.
Full-Service PCB Capabilities
At Ring PCB, we understand that every project is unique. That’s why we provide flexible solutions covering:
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Custom Multilayer PCBs (2–40 layers) – Designed and manufactured to meet complex requirements
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Rapid Prototyping – Quick-turn PCB samples ready in just 3 days
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Mass Production – Stable, large-volume output within 7 days
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Assembly Services – SMT, DIP, mixed technology, BGA, COB, fine-pitch down to 0.25mm
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Specialized PCBs – HDI, rigid-flex, high-frequency, RF, and metal-core PCB solutions
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Material Options – FR4, high-Tg FR4, Rogers, Polyimide, Halogen-free, and more
Overcoming Technical Challenges
Our engineering team has successfully addressed key challenges in multilayer PCB manufacturing:
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Impedance control for high-speed and RF designs
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Microvia and laser drilling down to 0.1mm for HDI boards
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Thermal management solutions for high-power LED and automotive electronics
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Rigid-flex integration to support lightweight and compact designs
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High-frequency materials for 5G, telecom, and aerospace applications
These capabilities make Ring PCB a trusted partner for customers with demanding technical specifications.
Industries We Serve
Our custom multilayer printed circuit boards are widely used across multiple fields:
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Automotive – EV systems, lighting, control modules, infotainment
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Medical – Imaging equipment, monitoring devices, portable healthcare electronics
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Telecommunication & Networking – 5G base stations, routers, high-speed servers
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Industrial Control – Robotics, automation, instrumentation, and power systems
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Consumer Electronics – Smartphones, IoT devices, wearable technology
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Aerospace & Defense – High-reliability boards for communication, radar, and navigation
Quality Assurance & Global Reach
All PCBs and PCBA services at Ring PCB are manufactured in compliance with ISO9001, ISO14001, ISO13485, and IATF16949. Our products have been exported to over 50 countries and regions, earning trust from international clients.
We support OEM, EMS, and full-turnkey PCBA solutions, enabling customers to reduce costs, speed up time-to-market, and focus on innovation. To protect your designs, we also provide strict NDA agreements and confidentiality management.
Why Partner with Ring PCB?
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17+ years of professional PCB experience
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Fast turnaround – 3-day prototyping & 7-day volume production
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Flexible order support – From small runs to large-scale batches
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One-stop service – PCB fabrication, SMT assembly, turnkey PCBA
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Technical expertise – Solving complex PCB design and manufacturing challenges
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Global service – Reliable supply to 50+ countries
These capabilities enable us to produce reliable, high-performance custom multilayer printed circuit boards even for complex and demanding projects.
Technical Capabilities & Parameters
| Specification | Capability |
| PCB Layers | 2–40 layers |
| Maximum Board Size | 600mm × 1200mm |
| Minimum Trace/Space | 3mil/3mil (0.075mm) |
| Minimum Hole Size | 0.1mm (Laser drilling) |
| Surface Finishes | HASL, ENIG, Immersion Tin, OSP, Hard Gold, etc. |
| Materials | FR4, High-Tg FR4, Rogers, Polyimide, Metal-core, Halogen-free |
| Thickness Tolerance | ±10% |
| Copper Thickness | 0.5oz – 6oz |
| Solder Mask Colors | Green, Black, Blue, White, Red, Yellow |
| Assembly Service | SMT, DIP, Mixed, BGA, COB, Fine-pitch (down to 0.25mm) |
| Testing | 100% E-test, AOI, X-ray inspection, Functional testing |
Your Trusted PCB Manufacturing Partner
With over 17 years of expertise, Ring PCB ensures that every custom multilayer PCB and multilayer printed circuit board is built to the highest standards. From OEM & EMS services to full-turnkey PCBA solutions, we provide a complete supply chain that helps you reduce costs, accelerate time-to-market, and guarantee reliability.
Contact us today at info@ringpcb.com or visit https://www.turnkeypcb-assembly.com.
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