Advanced PCB Assembly Service for AI, IoT, Medical, Industrial

PCB Assembly Service for Mid- and High-end Applications

Who we serve — PCBONLINE is a PCBA source-factory manufacturer founded in 2005, with two advanced PCB manufacturing bases in Jiangxi and Jiangsu Provinces in China, a turnkey PCB assembly factory, and a smart OEM center headquartered in Shenzhen. We serve original equipment manufacturers (OEMs), product terminal companies, and solution companies that need to bring electronic devices to market, from prototypes through bulk production.

Industries we serve — We focus on PCBA manufacturing for AI hardware, IoT devices, medical electronics, industrial controls, and automotive electronics. We also take on PCB fabrication and assembly projects for aerospace, defense, communication electronics, and research applications.

Our PCB assembly follows IPC-A-610 acceptance standards by industry:

Class 2 for communication, industrial, and commercial devices that require an extended service lifeClass 3 for medical, automotive, aerospace, defense, and precision instruments where high reliability is mandatory

PCBA manufacturing capabilities — Our turnkey PCBA factory is equipped with:

Four automatic SMT lines supporting 01005-footprint components and up to 376 SMDs per sideFour semi-automatic THT lines with the option of selective wave soldering availableFour post-assembly lines for value-added servicesIn-line inspections: 3D SPI, X-ray inspection, dual 3D AOI, and visual inspectionsTemperature- and humidity-controlled component warehouses for passive and active component verification and storage

Comprehensive PCBA Value-Added Services

In the PCB post-assembly stage, PCBONLINE provides complete value-added services until the delivery of finished PCBAs and products that have been verified for function and quality, including:

Functional testing: We provide customized manufacturing and testing jigs, including functional testing. On a functional testing jig, the assembled PCB is powered on to verify that its electrical functions match the design specifications. Functional testing is free for bulk production orders.

Conformal coating: PCBAs are coated with urethane/polyurethane to protect against dust, moisture, chemicals, vibration, and high temperatures, extending operational lifespan. We use electrostatic spraying for uniform coating thickness and optimal flatness.

IC programming: We download your program into ICs without retaining your program data. If you prefer a secure transfer method, we can set up a temporary cloud account so your program goes directly to the ICs without being stored on our computers.

Aging test (burn-in): In a programmable temperature chamber, PCBAs operate continuously for 48 to 168 hours to verify long-term reliability under thermal stress.

Box-build assembly: We assemble PCBAs into enclosures with wiring harnesses and accessories and apply your branding labels. Send us your enclosure design matched to the PCBA, and we will deliver finished products ready for your market.

One-Stop PCB Assembly Company PCBONLINE

PCBONLINE provides one-stop PCB assembly for OEMs, product terminal companies, solution companies, research institutes, and business makers worldwide. Over the past two decades, we have had rich experiences in one-stop PCB assembly for AI hardware, IoT, medical, automotive, industrial controls, defense, communications, agricultural, and mid- to high-end consumer electronics.

Our electronic manufacturing service (EMS) factory for PCB assembly is dust-free. Every process has a group member specialized in spot check quality control (QC), which is independent of our QC system to prevent poor quality PCBAs.

We aim to be a long-term manufacturing partner, not just a contract assembler. So far, we have brought many project designs into production and continue to handle reorders, including:

24KW high-power AI servers with custom cables and external connectorsAI smart chessboardsIoT projectorsgastroscopy HDI extremely compact PCBACell contact systems for automotive battery packsIndustrial inverter boards for EV charging piles

We provide one-on-one engineering support throughout the journey regardless of order quantity. For a quote on our PCB assembly services, email us at info@pcbonline.com.