Explore our diverse portfolio of high-precision printed circuit board assemblies engineered for industrial, medical, and aerospace systems.
In the medical device manufacturing sector, there is zero margin for error. Printed Circuit Board Assemblies (PCBAs) act as the central nervous system for life-saving medical equipment, ranging from diagnostic imaging systems to implantable pacemakers. A single solder joint failure or component malfunction can have catastrophic consequences. Consequently, medical PCB assembly demands rigorous adherence to international quality standards, advanced manufacturing technologies, and robust risk mitigation strategies.
As a leading medical PCB assembly manufacturer, STHL understands that medical-grade electronics must operate flawlessly under extreme conditions. We design and assemble boards that comply with IPC-A-610 Class 3 standards, ensuring high reliability, extended life cycles, and uninterrupted performance in critical healthcare environments.
Providing comprehensive, end-to-end electronics contract manufacturing services since 2006.
Shenzhen STHL is a high-quality provider of electronics manufacturing services (EMS) in China. We serve customers worldwide along the whole industry chain including PCB layout, components sourcing, PCB fabrication, PCBA assembly, cable assembly, box build assembly and comprehensive testing services.
Established in 2006, STHL has accumulated 20 years of experience in electronics contract assembly manufacturing. Our state-of-the-art 10,000 sqm facilities house 7 SMT assembly lines, 2 DIP/THT lines, 2 function testing lines, and 2 finished device assembly lines. This extensive infrastructure allows us to scale production seamlessly from rapid prototyping to high-volume manufacturing.
We provide electronics assembly services for energy power, communications, automotive, medical, consumer electronics, computers & storage, safety & security, commercial and industrial products. Our global footprint spans the USA, Germany, Italy, UK, Poland, New Zealand, Argentina, Brazil, Turkey, Korea, Thailand, and over 90 other regions worldwide.
As an IATF16949, ISO9001, ISO14001, and ISO13485 certificated electronics assembly manufacturer, we produce products that comply strictly with RoHS standards. Our engineering and production capacities cover advanced technical areas such as:
Leveraging state-of-the-art SMT and THT technologies to handle complex, high-density medical electronics.
We can handle a wide range of advanced components, including:
Our commitment to quality goes beyond component expertise. We utilize advanced inspection techniques, including 3D Solder Paste Inspection (SPI), Automated Optical Inspection (AOI), and 3D X-Ray inspection, to guarantee flawless assembly and detect hidden solder defects under BGAs.
STHL PCBA also excels in Through-Hole Technology (THT) assembly. Our services encompass:
From design verification to final box build, we offer a complete suite of EMS solutions.
STHL operates 7 automated PCB assembly lines for both prototype and mass production. Advanced SMT ensures precise component placement and quality. Skilled technicians provide efficient THT assembly and RoHS-compliant lead-free soldering.
STHL PCB fabrication service produces high-quality, reliable printed circuit boards from simple singles to complex multi-layers, from flex PCB to rigid-flex PCB. We use premium materials and controlled processes to meet precise specifications.
STHL offers global electronic component sourcing and supply chain solutions. Our vast supplier network and expertise ensure access to genuine, certified parts, mitigating risks of counterfeits, allocation, and long lead times to secure your production schedule.
With the precision manufacturing of cable assembly components including handles, retention systems, connectors, and shielding in a wide range of materials and finishes, we have performed many successful cable assemblies for industrial and medical applications.
Making your projects at STHL from SMT assembly to box build assembly is very cost-effective and fast to market. Covering everything from putting a PCBA into the enclosure with all functions testing to a complete product assembly packaged and ready for delivery.
STHL conducts functional testing (FCT) to verify product performance, preventing defects such as circuit issues, missing or incorrect components. This ensures delivered products are stable and fully qualified before leaving our facility.
Navigating the complex regulatory landscape of medical device manufacturing with local expertise and global standards.
Medical devices sold globally must comply with strict regional regulations. In the United States, the FDA regulates medical devices under 21 CFR Part 820. In Europe, the Medical Device Regulation (EU MDR 2017/745) imposes stringent requirements on traceability and clinical safety. At STHL, our manufacturing processes are aligned with these standards.
Our ISO 13485 certification is not just a badge; it is the foundation of our quality management system. We maintain complete traceability for every component on the board, establishing a robust Device History Record (DHR) that allows for full backward tracking in the event of a field issue. This level of compliance is critical for Class II and Class III medical devices.
To bridge the gap between global design teams and our manufacturing facility, STHL provides localized engineering support. Our English-speaking project managers and DFM (Design for Manufacturability) engineers work directly with your R&D team to optimize layouts, reduce component count, and resolve potential manufacturing bottlenecks before production begins.
This collaborative approach ensures that localized regulatory requirements—such as UL certification, CE marking, and FCC compliance—are integrated into the PCBA design and testing protocols early in the lifecycle.
How STHL leverages the Shenzhen electronics ecosystem to deliver cost-effective, high-quality medical PCBAs.
Located in Shenzhen, the silicon valley of hardware, STHL has immediate access to a complete supply chain. From raw copper clad laminates (CCL) to specialized medical-grade connectors, we can source materials within hours rather than weeks, dramatically reducing time-to-market (TTM).
Our automated production lines and optimized labor workflows allow us to offer highly competitive pricing without compromising quality. We pass these efficiency savings directly to our customers, making high-end medical electronics manufacturing more accessible.
We maintain direct partnerships with global franchised distributors (such as Arrow, Avnet, DigiKey, and Mouser) as well as vetted local component manufacturers. This dual-sourcing strategy ensures component authenticity while mitigating the risks of global shortages and long lead times.
Addressing the core concerns of global procurement managers: quality, supply chain resilience, and lifecycle management.
The rise of counterfeit electronic components poses a severe threat to medical device safety. STHL employs a strict incoming inspection process. All components sourced outside of direct manufacturer channels undergo rigorous verification, including microscopic inspection, X-ray analysis, and acetone testing, to verify authenticity.
Medical devices often have lifecycles spanning a decade or more, while electronic components may go End-of-Life (EOL) within a few years. STHL provides proactive obsolescence monitoring. We alert our clients to upcoming EOL components and recommend drop-in replacements or redesign strategies to prevent production downtime.
Furthermore, we offer buffer stock management and bonded warehousing for critical components. By securing long-lead-time active components in advance, we protect your production schedule against market volatility and sudden demand spikes.
Staying ahead of the curve with advanced manufacturing technologies for next-generation healthcare devices.
As medical implants and wearable monitors shrink, PCBAs must pack more functionality into smaller footprints. STHL is investing in advanced HDI (High-Density Interconnect) PCB fabrication, micro-BGA placement, and 01005 component assembly to support the next generation of ultra-compact medical devices.
Continuous patient monitoring requires flexible and rigid-flex PCBAs that can conform to the human body. We specialize in assembling flexible circuits using biocompatible materials and protective conformal coatings to ensure durability against sweat, moisture, and physical wear.
Modern diagnostic tools require real-time data processing at the device level. This demands high-speed digital designs with complex processors. STHL utilizes advanced thermal management techniques, including metal-core PCBs and thermal vias, to handle the heat generated by AI-capable edge processors.
Where our high-reliability PCB assemblies are deployed in the real world.
High-speed, low-noise PCBAs for ultrasound machines, MRI scanners, and CT imaging systems. These boards require precise impedance control and shielding to prevent signal degradation.
Reliable circuits for ECG monitors, pulse oximeters, and blood pressure monitors used in intensive care units (ICUs) where continuous operation is critical.
Complex, multi-layer PCBAs that control high-precision motors and sensor feedback loops in robotic-assisted surgery systems, requiring zero-latency signal transmission.
Compact, cost-effective PCBAs for handheld diagnostic devices, glucose monitors, and rapid testing kits used in clinics and home care environments.
Get answers to the most common questions regarding medical PCB assembly, compliance, and capabilities.
High-reliability printed circuit board assemblies manufactured to the highest global standards.
STHL PCBA
