Why Choose FS CircuitsFor Your PCB Assembly & Manufacturing Needs
Customer-Centric ApproachWhy Leading Companies Trust Our PCB Manufacturing & Assembly Services
With over 18 years of PCBA and PCB manufacturing experience, FS Circuits is a leader in offering excellent circuit board assembly solutions to businesses. Our full-cycle quality control and management practices are implemented during every process step, from the purchase of raw materials to shipping.
Our dedication to quality has made us the exclusive PCB producer of Qatar's municipal engineering streetlight circuit boards and a valued supplier to numerous Fortune 500 firms, such as Electrolux.
Dedicated Project Management
Each project is assigned a dedicated project manager who serves as your contact throughout the manufacturing process.
Transparent Communication
Your project status is reviewed regularly and questions are answered in a timely manner so that you’re always informed about your project’s status.
Flexible Production Scheduling
We welcome rush orders and can adjust production timetables to accommodate your changing requirements without compromising quality.
Our Comprehensive Quality Control Process
From design verification to final testing, our IPC-compliant quality control system ensures that every circuit board assembly we produce meets or exceeds industry standards.
- Strict adherence to IPC-A-610 standards
- 100% AOI (Automated Optical Inspection) testing
- X-ray inspection for critical components
- Functional testing with customized test fixtures
- Final QC inspection by certified technicians
Advanced PCB Manufacturing Capabilities
Our circuit board manufacturing facilities operate with precision equipment and stringent quality control standards that exceed industry requirements. With a monthly production capacity of 25,000 square meters, we specialize in HDMI, multi-layer high-precision, and challenging technical specifications.
| Aspect | Details | FS Circuits Advantages |
|---|---|---|
|
PCB Raw Material |
Adopt A grade copper clad laminates material such as KB, NY. |
Good dimensional stability after heating,Curvature of the board ≤0.75%,Not easy |
|
Technology Standards |
Standard copper PTH technique makes copper in vias reach 20-22µm |
Even better than IPC class 2 requirement (via copper thickness 18-20µm). lesser |
|
Soldermask |
Apply high class sensitization soldermask from KuangShun or RongDa |
Glossy ink, strong color. Solder resist thickness up to standard 8-30µm. Help achieve better filling via with resin and better adhesive force soldermask on your PCB. |
|
Plating & surface treatment |
Use high class electroplating potions and surface treatment potions |
Lesser soldering problems, BGA solder risk, make sure copper in via, surface,surface treatment has strictly control within IPC standards. Pollution and oxidation of the board surface, black nickel, abnormal nickel thickness, SCUM (shadow) and other problems are strictly controlled during the operation process. |
|
Delivery Standard |
Deliver in 100% yeild of production |
|
Expert PCB Assembly Services
Our state-of-the-art PCB assembly facilities feature 8 high-speed SMT lines equipped with advanced technology including 3D SPI, multi-zone reflow soldering, wave soldering, automated AOI, and X-Ray inspection systems. This comprehensive equipment array allows us to handle complex, high-precision products with exceptional reliability.
Component Selection and Quality Assurance
| Component | Standard Selection | Quality Advantage |
|---|---|---|
|
Capacitor |
Default YAGEO brand, voltage 50V, 10% precision, X7R material |
Good cost performance, 3-4 times lower cost than international brands, but has better performance than domestic brands when comparing the same specifications. |
|
Resistor |
Default YAGEO, precision 1%. |
|
|
Electrolytic Capacitor |
Default Wanyu, Lilong, Warwick, Fengbin brand |
Longer life time, stable performance |
|
Inductor |
Small batch apply Sunlord brand, mass production apply ABC-ATEC |
Stable performance ( ABC-ATEC is the OEM foundry of Bourns.) |
|
Connector |
Pitch 3030, 4242 conventional replacement of Tanda connector (Tanda is MOLEX,JST,TE connector foundry) |
Adopt internation raw material,high tempreture resistance, copper USB material. Longer life time, stable performance. |
|
Diode Transistor |
Default apply production datecode within 2 years,We would apply LRC, MDD ect if our client agree with better cost alternative. |
Stable performance and price, guaranteed quality |
|
IC |
According to the requirements from customers, recommend the first-tier brand with the same functions and make sure the production datecode is within 2 years. |
Stable performance, guaranteed quality. |
|
Purchasing channels |
All the components come from the original factory, the original factory agent and other formal channels |
Ensure that the technical parameters and service life of components meet the requirements |
Advanced Assembly Techniques & Quality Control
| Process | Specification | FS Circuits Advantage |
|---|---|---|
|
Solder Paste |
Alpha brand solder paste |
Superior application range (80µm thick screen plate printing 20µm diameter circles); excellent polymerization properties reducing double ball phenomena; improved lead-free reflow; finer solder joint fusion; enhanced weldability; significantly improved production yield |
|
Production & Quality Control |
|
Standardized operation protocols; process inspection ensuring timely identification and correction of production and quality anomalies; OQC final verification; quality standards meeting military-grade requirements |
|
Packaging |
|
Customized outer boxes with excellent breaking strength, side pressure resistance, and shock absorption; electrostatic shielding bags providing dust, moisture, and static protection; anti-static bubble wrap preventing component damage; protective pearl-cotton reinforced packaging minimizing logistics breakage |
Our Complete Turnkey PCB Assembly Advantages
Precision SMT Assembly Capabilities
Our advanced surface mount technology allows us to place components as small as 0201 (01005) and handle complex BGA, VFBGA, and CSP packages. With a minimum mounting pitch capability of 0.15mm for double-sided SMT assembly, we can accommodate the most demanding design requirements for high-density circuit boards.
Comprehensive Quality Control System
Quality assurance is embedded throughout our manufacturing process, with specialized inspection teams at each critical stage:
- IQC (Incoming Quality Control): Every component batch undergoes rigorous verification before entering production
- IPQC (In-Process Quality Control): 100% inspection during manufacturing
- OQC (Outgoing Quality Control): Final verification ensuring only perfect products reach our customers
Our typical manufacturing yield rates exceed industry standards at : 99.4% for PCB production and 98.5% for PCBA assembly, with 100% quality control for all shipped products.
Specialized Testing & Verification
We offer comprehensive testing services including AOI, X-ray verification, electrical testing, and functional verification. For projects requiring firmware, we provide programming services using industry-standard tools including JLink, Microchip, MSP430, SmartPro, and ST-Link. Our engineers can design custom test fixtures to streamline production efficiency and ensure product functionality.
Unlike typical manufacturers, we implement nickel thickness control during PCB production. This critical factor—often overlooked by competitors—significantly improves solderability, prevents black pad syndrome, and extends product lifespan in challenging environments.
Trusted By Industry Leaders Worldwide
Since 2004, we’ve partnered with companies across industrial controls, medical equipment, automotive electronics, IoT, consumer electronics, and more. who value our commitment to quality and service excellence. Our manufacturing facilities are fully certified with ISO9001:2015, ISO14001, UL, TS16949, and ISO13485 accreditations, ensuring we meet the highest international standards for quality management and environmental responsibility.
Experience Our Industry-Leading Quick Turn PCB Assembly Services
From prototype PCB manufacturing to high-volume production, our integrated manufacturing capabilities deliver exceptional quality with industry-leading turnaround times:
Partner With FS Tech For Your Next Project
Whether you need fast PCB prototyping, high-quality circuit board assembly, or full-scale manufacturing solutions, our team is ready to deliver exceptional results that meet your exact specifications. Contact our experts today to discuss your requirements and discover how our turnkey PCB assembly services can accelerate your product development and manufacturing timeline.