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Top PCB Tech

OEM Contract PCB & PCBA Manufacturer in China

One-Stop PCB & PCBA Solution Provider

Advanced PCB manufacturing and assembly services in China. Trusted by global clients in aerospace, defense, medical, automotive, and industrial electronics.

Rigid Flex PCB Rogers 4350B PCB PCBA Manufacturing PCB Assembly

About Top Circuits Technology

A trusted OEM contract manufacturer delivering high-reliability PCBs and PCBA since 2010.

PCB Assembly Line

Top Circuits Technology Co., Limited was founded in October 2010 with a mission to provide advanced, reliable, and cost-effective printed circuit board solutions for high-performance applications across aerospace, defense, medical, automotive, and industrial sectors.

We specialize in multilayer PCBs, HDI, heavy copper, flex, rigid-flex, metal core (MCPCB), ceramic, and Rogers high-frequency PCBs. Our full turnkey services include PCB layout, rapid prototyping, volume production, component sourcing, PCB assembly (SMT & THT), and box build.

Quick-turn prototypes (24h–7 days)
Impedance control & high-frequency designs
RoHS & lead-free compliant
ISO 9001 & IATF 16949 certified

Our PCB & PCBA Products

High-quality, precision-engineered circuit boards and assemblies for mission-critical applications.

Flex PCB

Flex PCB

High-reliability flexible circuits using PI or PET substrates. Ideal for compact, dynamic, and high-vibration environments.

  • • Polyimide (PI) or PET base
  • • 1–6 layers
  • • ENIG, Immersion Silver, OSP finishes
  • • Stiffeners & adhesive layers
Rigid-Flex PCB

Rigid-Flex PCB

Hybrid boards combining rigid and flexible layers for 3D packaging and high-density interconnects.

  • • 4–20+ layer stacks
  • • Controlled impedance
  • • ENIG, gold fingers
  • • Precision lamination
Rogers PCB

Rogers & High-Frequency PCB

RF & microwave PCBs using Rogers 4000, Taconic, Isola, and other high-frequency laminates.

  • • Rogers 4350B, 5880, RT/duroid
  • • Impedance control
  • • Low Dk/Df materials
  • • 2oz copper options
Metal Core PCB

Metal Core PCB (MCPCB)

Thermally efficient boards with aluminum or copper bases for LED, power, and automotive applications.

  • • Aluminum, copper, or thermoelectric separation
  • • 1.6mm standard thickness
  • • ENIG finish
  • • Thermal conductivity up to 4W/mK
Ceramic PCB

Ceramic PCB

High-thermal-conductivity alumina or aluminum nitride substrates for LED, power, and RF modules.

  • • Single or double-sided
  • • Direct Bonded Copper (DBC)
  • • High CTE matching
  • • Ideal for high-power LEDs
PCB Assembly

PCB Assembly (PCBA)

Full turnkey or consignment assembly with component sourcing, SMT, THT, and testing.

  • • 01005 to 45mm BGAs
  • • AOI & X-ray inspection
  • • ICT, functional testing
  • • Conformal coating & potting
Multilayer PCB

Multilayer FR4 PCB

High-density interconnects with impedance control, blind/buried vias, and advanced stack-ups.

  • • 4–30+ layers
  • • Impedance-controlled designs
  • • ENIG, HASL-LF, OSP finishes
  • • Blue, green, black solder mask
Stencil

SMT Stencils

Laser-cut stainless steel stencils for precise solder paste application in SMT assembly.

  • • 3–8 mil thickness options
  • • Nano-coating available
  • • Frameless or framed
  • • Fast turnaround

Why Choose Top PCB Tech?

Advanced technology, strict quality control, and customer-focused service for your mission-critical electronics.

Fast Turnaround

Prototype delivery in as fast as 24 hours. Volume production with reliable lead times.

High Reliability

ISO 9001 & IATF 16949 certified processes. Designed for aerospace, medical, and industrial use.

Full Turnkey Service

From design to delivery: layout, fabrication, components, assembly, testing, and logistics.

Global Support

Serving clients worldwide with responsive communication and logistics coordination.

14+
Years in Business
50K+
PCBs Shipped Annually
99.8%
First Pass Yield
60+
Global Clients

Frequently Asked Questions

Get answers to common questions about our PCB and PCBA services.

What file formats do you accept for PCB design?

We accept Gerber (RS-274X), IPC-2581, ODB++, and native PCB design files (Altium, KiCad, Eagle, etc.).

What is your standard lead time for prototypes?

Standard lead time is 5–7 days. We offer 24h, 48h, and 72h quick-turn options for urgent projects.

Do you offer component sourcing?

Yes, we provide full component sourcing with shortage management and counterfeit prevention protocols.

Are your PCBs RoHS compliant?

Yes, all our PCBs and assemblies are RoHS and REACH compliant. Lead-free assembly available upon request.

Can you handle HDI and microvia designs?

Yes, we support HDI technology with blind, buried, and stacked microvias for high-density designs.

Get in Touch

Ready to start your next project? Contact us for a fast quote and technical support.

Phone: +86 137 5145 3705
Working Hours: Mon - Sun / 9:00 AM - 6:00 PM (CST)
Factory: Shenzhen & Dongguan, Guangdong, China

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