Customer reviews
Excellence in PCB Assembly & Manufacturing
Our company was built on a commitment to being the most reliable partner you can find in this industry, and we strive to embody this in every client relationship and are committed to working with the highest integrity. We value strong client relationships, teamwork and open communication. We regard customers’ favorable comments on us as the highest honor!
Global Trust Built on 18+ Years of PCB ExcellenceFS has gained a lot of recognition and friendship for its excellent quality and service.
FS Circuits is a PCB/PCBA manufacturing and sales integrated industry and trade enterprise.
Our customers are located in different countries and regions all over the world. We have more than 18 years of experience in PCB/PCBA industry.
Our Quality CommitmentThe PCB Assembly and Manufacturing Difference
At our circuit board assembly facility, quality isn’t just a promise—it’s built into every step of our process. Our customers consistently highlight several aspects of our printed circuit board assembly services that set us apart:
Expert PCBA Manufacturing Process
With 8 high-speed SMT lines equipped with 3D SPI, X-RAY inspection, 10-zone reflow ovens, and automated AOI, we maintain exceptional quality standards. Our company is ISO 9001:2015 certified, and we adhere to IPC-A-610 in all of our PCB assembly services.
Wherein our circuit card assembly process stands out is that we conduct a comprehensive inspection process:
- IQC (Incoming Quality Control) of bare PCBs and all materials
- Automated optical inspection 100% in production
- X-ray inspection of BGA and complex component placement
- Functional testing customized to your application
- Environmental stress screening for mission-critical programs
Low Cost PCB Assembly Without Compromising Quality
Our open pricing and value-based approach to PCB assembly costs satisfy our clientele. By combining our PCB manufacturing and assembly offerings, we bypass middleman markups without diminishing standards of quality.
Our component buying department utilizes approved vendors to buy original high-quality components at competitive prices. For those with cost-cutting needs, we can recommend substitute components that don’t sacrifice performance but will reduce PCBA prices.
Custom PCB Assembly For Specialized Requirements
Apart from standard surface mount technology (SMT) assembly, we offer specialized services including:
- HDI PCB assembly with microvia handling
- Flex PCB and rigid-flex assembly
- Selective soldering mixed technology (SMT/THT)
- Conformal coating application (silicone, acrylic, polyurethane)
- Box build and end product assembly
- Custom firmware programming and functional testing
Experience Our PCB Assembly Excellence Firsthand
Join our satisfied customers who trust their critical circuit board assembly projects to our experienced team. From prototype PCB assembly to high-volume production, we deliver quality, speed, and value.
PCB Assembly ReviewsCustomer Reviews on Our Fast Turn PCB Assembly Capabilities
Their quick turn PCB assembly service saved our product launch. We needed complex medical device PCBAs with strict quality requirements in just 10 days. Not only did they deliver on time, but every board passed our rigorous testing protocols. Their IPC-A-610 Class 3 compliant assembly process gives us confidence for our critical applications.
We had a fantastic experience with this supplier! They were incredibly helpful throughout the process and always happy to answer any questions we had. The product quality exceeded our expectations, and everything was produced to a high standard. Dispatch was on time, ensuring no delays on our end. Overall, a reliable and professional supplier—we will definitely be using them again! Highly recommended.
We've received the boards and have to say we're impressed with the good quality and everything worked perfectly!. For the next batches,I will contact you again!
Very good quality, professional packaging, Fast shipping time. Ian has been very helpful and professional to offer quick response to solve problems. Definitely do trade with FS Circuits future 🙂
Their ability to handle quick turn PCB production saved our product launch. We needed 50 prototype boards with over 1,000 components each in just one week. Not only did they meet this challenging timeline, but their first-pass yield was an impressive 97%. Their engineering team helped optimize our BOM with equivalent components when supply chain issues threatened our schedule.
Their quick turn PCB assembly service saved our product launch. We needed complex medical device PCBAs with strict quality requirements in just 10 days. Not only did they deliver on time, but every board passed our rigorous testing protocols. Their IPC-A-610 Class 3 compliant assembly process gives us confidence for our critical applications.
We had a fantastic experience with this supplier! They were incredibly helpful throughout the process and always happy to answer any questions we had. The product quality exceeded our expectations, and everything was produced to a high standard. Dispatch was on time, ensuring no delays on our end. Overall, a reliable and professional supplier—we will definitely be using them again! Highly recommended.
We've received the boards and have to say we're impressed with the good quality and everything worked perfectly!. For the next batches,I will contact you again!
Very good quality, professional packaging, Fast shipping time. Ian has been very helpful and professional to offer quick response to solve problems. Definitely do trade with FS Circuits future 🙂
Their ability to handle quick turn PCB production saved our product launch. We needed 50 prototype boards with over 1,000 components each in just one week. Not only did they meet this challenging timeline, but their first-pass yield was an impressive 97%. Their engineering team helped optimize our BOM with equivalent components when supply chain issues threatened our schedule.
We've partnered with them for turnkey PCB assembly on our security control modules for three years. Their component inventory management has reduced our lead times significantly. The only reason for 4 stars instead of 5 is an occasional delay with specialty components, though they're always transparent about timelines. Their DFM feedback has helped us improve our designs for better manufacturability.
This is my first order of electronic manufacturing service in China. The boards was received ahead of schedule with excellent quality, price and customer service. Thanks a lot.. Will place the second order soon. I highly recommend FS Circuits as your PCBA manufacturer partner.
All 20 samples turned out perfect and we are very happy with the quality and service. We will be using Shenzhen FS Circuits as our manufacturer for our production runs.
We've worked with several PCB manufacturers, but their turnkey PCB assembly service stands out. From component sourcing to final testing, everything is handled professionally. Their ability to manage our BGA and 0201 component requirements with near-perfect yields has eliminated countless headaches for our team. Plus, their engineers suggested component substitutions that actually improved our design!
Their flex PCB assembly capabilities are outstanding. We design automotive sensors with rigid-flex PCBs that require precise handling and specialized assembly techniques. Their team's experience with these challenging builds has been invaluable. The thermal cycling reliability testing they perform gives us confidence our products will withstand harsh environments.
We've partnered with them for turnkey PCB assembly on our security control modules for three years. Their component inventory management has reduced our lead times significantly. The only reason for 4 stars instead of 5 is an occasional delay with specialty components, though they're always transparent about timelines. Their DFM feedback has helped us improve our designs for better manufacturability.
This is my first order of electronic manufacturing service in China. The boards was received ahead of schedule with excellent quality, price and customer service. Thanks a lot.. Will place the second order soon. I highly recommend FS Circuits as your PCBA manufacturer partner.
All 20 samples turned out perfect and we are very happy with the quality and service. We will be using Shenzhen FS Circuits as our manufacturer for our production runs.
We've worked with several PCB manufacturers, but their turnkey PCB assembly service stands out. From component sourcing to final testing, everything is handled professionally. Their ability to manage our BGA and 0201 component requirements with near-perfect yields has eliminated countless headaches for our team. Plus, their engineers suggested component substitutions that actually improved our design!
Their flex PCB assembly capabilities are outstanding. We design automotive sensors with rigid-flex PCBs that require precise handling and specialized assembly techniques. Their team's experience with these challenging builds has been invaluable. The thermal cycling reliability testing they perform gives us confidence our products will withstand harsh environments.
The Scientific Edge in Our PCBA Manufacturing
What separates our circuit board assembly approach from competitors is our scientific methodology to thermal profiling and process control. Our engineers use advanced Thermal Profiling systems to create optimized soldering profiles for each unique PCBA design.
This data-driven approach eliminates common defects like tombstoning, insufficient wetting, and component damage. For sensitive components, we implement nitrogen atmosphere soldering which reduces oxidation and improves solder joint quality—a technique rarely offered by standard PCB assembly services.
Unique Advantage: PCB Assembly Services Near Customer Design Centers
Our strategic location provides significant advantages for companies with design centers in major tech hubs. Unlike offshore PCBA manufacturers, we offer:
- Same time zone collaboration for real-time design reviews
- Simplified logistics with faster shipping and fewer customs delays
- On-site factory visits and production oversight opportunities
- Enhanced intellectual property protection
- Faster prototype iteration cycles for accelerated product development
This proximity advantage has proven especially valuable for our customers developing cutting-edge products with aggressive time-to-market requirements.
PCB Assembly Services FAQCustomer Questions Answered
For standard prototype PCBA projects, we typically deliver in 1-2 weeks. Our fast turn PCB assembly service can accommodate urgent needs with 48-72 hour turnarounds for less complex boards. Production volumes generally require 3-4 weeks, depending on component availability and complexity.
No, we accept projects of all sizes—from single prototype boards to high-volume production runs. Our flexible manufacturing approach allows us to efficiently handle both small batch PCB assembly and large-scale production without MOQ requirements.
Yes, we accept customer-supplied components for assembly. We request that passive components be provided in tape and reel packaging for production efficiency. For prototype or small batch PCB assembly, we can accommodate various packaging types. All customer-supplied components undergo our standard incoming inspection process.
Our comprehensive quality system includes incoming component inspection, automated optical inspection (AOI), X-ray verification for hidden solder joints, and functional testing. We follow IPC-A-610 standards and provide detailed production documentation. For critical applications, we offer additional screening methods including thermal cycling and environmental stress testing.
Our capabilities span the full spectrum of PCB assembly technologies, including surface mount (SMT), through-hole (THT), mixed technology, flex and rigid-flex assembly, and complex HDI boards. We routinely work with components as small as 01005 and can handle fine-pitch BGAs down to 0.4mm pitch.