Your Trusted Partner for High-Quality PCB Manufacturing & Assembly
Founded in 2000 in Shenzhen, China, Topline Circuit supports PCB manufacturing and assembly projects for rigid, HDI, metal core, flexible, rigid-flex, and hybrid boards.
Before production, we review Gerber files, drill data, stack-up requirements, fabrication notes, BOMs, pick-and-place files, and assembly drawings. This helps identify material risks, routing constraints, impedance issues, and assembly access problems during the DFM review.
We support applications in industrial control, medical instrumentation, aerospace, telecommunications, automotive systems, and consumer electronics. Engineering review covers material selection, impedance confirmation, and assembly planning before production release.

With advanced equipment, experienced engineers, and a customer-first mindset, we are committed to delivering reliable quality, fast turnaround, and exceptional service on every project.
Development history
“Through our continuous efforts and innovation, significant progress has been made in the field of PCB manufacturing. Every number reflects the dedication and achievements of our team.”
we started with multilayer PCB fabrication and Gerber reviews for industrial and telecom projects. We focused heavily on stack-up verification, material selection, and production planning. This helped us catch manufacturing issues before the boards went into production.
we added turnkey PCB assembly, including BOM reviews, component sourcing, and SMT management. Buyers could now submit just one set of files for both fabrication and assembly. This one-stop approach simplified the process and saved our clients a lot of time.
Why Choose Topline Circuit?
One-Stop PCB Solution
From PCB fabrication to SMT assembly and final testing, we handle it all under one roof.
Quality You Can Trust
Strict quality control, advanced inspection, and full compliance with international standards.
Fast Lead Time
Smart production planning and efficient processes ensure quick turnaround and on-time delivery.
Engineering Support
Experienced engineers provide DFM review and technical support from prototype to mass production.
Built for Performance. Delivered with Care.
- Advanced manufacturing equipment and automated production lines
- Rigid, HDI, flexible, rigid-flex and aluminum PCB capabilities
- SMT, BGA, VIA in PAD, impedance control and more
- Global logistics with secure packaging and on-time delivery
- Dedicated account management and after-sales support

Certified Quality. Global Compliance.






Certified Quality. Global Compliance.





What Our Customers Say
Let's Build Your Next Project Together
Contact us today for a fast quote and experience our reliable, high-quality PCB solutions.