Deploying advanced hardware configurations designed to meet the rigorous quality standards of Northern Vietnam’s growing technology zones.
The city of Hai Phong has transformed into the primary node of Northern Vietnam's industrial and electronics corridor. Powered by key infrastructure projects like the Deep C Industrial Zone cluster, Trang Due Industrial Park, and Nam Dinh Vu Port, it has attracted billions of dollars in foreign direct investment (FDI). High-tech giants and automotive disrupters have built sprawling production facilities here, generating massive, continuous demand for highly reliable, precision-engineered Printed Circuit Board Assemblies (PCBA).
For operations in Hai Phong to achieve optimal velocity, they must resolve a crucial challenge: securing a highly stable, advanced supply chain that avoids bottleneck delays. This is where the cross-border synergy between Shenzhen manufacturing centers and Hai Phong deployment targets offers a key advantage. By utilizing Shenzhen's mature raw component ecosystem, engineering expertise, and advanced prototyping capabilities, and leveraging direct land and sea freight links to Northern Vietnam, global OEMs can minimize their time-to-market while meeting strict international quality standards.
Integrating Shenzhen's rapid prototype iteration with volume delivery directly to Northern Vietnam offers key advantages:
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.
It was established in 2006, with 20 years of experience in electronics contract assembly manufacturing. Currently, STHL has 220+ staff members. Our 10,000 sqm facilities include 7 SMT assembly lines, 2 DIP/THT lines, 2 function testing lines, and 2 finished device assembly lines.
At STHL, we provide electronics assembly services for energy power, communications, automotive, medical, consumer electronics, computers & storage, safety & security, commercial, and industrial products. Our customers mainly come from the USA, Germany, Italy, UK, Poland, New Zealand, Argentina, Brazil, Turkey, Korea, Thailand, and other 90 regions of the world.
As an IATF16949, ISO9001, ISO14001, and ISO13485 certificated electronics assembly manufacturer, we produce products exactly complying with the RoHS standard and quality guarantee. Based on our excellent engineering and production capacities in technical areas such as materials analysis & storage, advanced equipment, reliability testing (AOI, X-RAY, ICT test and function test), and highly effective SMT and THT assembly, we are recognized as a long-term reliable PCBA vendor by more and more customers worldwide.
Our manufacturing floor is configured to process complex surface-mount and traditional through-hole configurations with high precision and yield reliability.
We can handle a wide range of advanced components, including:
We have the expertise to handle these complex components with precision, ensuring reliable connections.
Our advanced equipment tackles various surface-mount package types efficiently.
We're equipped to handle even the most intricate components with tight pitch spacing.
Our commitment to quality goes beyond component expertise. We utilize advanced inspection techniques, including AOI and X-Ray inspection, to guarantee flawless assembly.
STHL PCBA also excels in Through-Hole Technology (THT) assembly. Our services encompass:
Providing end-to-end electronic contract manufacturing services, from custom PCB fabrication to complete box-build integration and functional validation.
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 single-layer designs to complex multi-layer boards, and from flex PCBs to rigid-flex PCBs, 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 issues, and long lead times to secure your production schedule.
With precision manufacturing of cable assembly components, including handles, retention systems, connectors, and shielding in a wide range of materials and finishes, we have delivered successful cable assemblies for customers across various industrial sectors.
Partnering with STHL for everything from SMT assembly to box build integration helps accelerate your time-to-market. Covering everything from placing a PCBA into the enclosure to full function testing and final packaging, we provide comprehensive project support.
STHL conducts functional testing (FCT) to verify product performance, helping prevent defects such as open circuits, short circuits, or missing or incorrect components. This process ensures delivered products are stable and fully qualified.
We supply high-reliability electronics built to withstand challenging environments, supporting key industries from maritime logistics to automotive assembly.
Northern Vietnam is a growing center for automotive manufacturing, highlighted by the VinFast manufacturing complex in Cat Hai, Hai Phong. Modern vehicles require reliable double-sided automotive PCBA nodes for sub-systems such as advanced driver-assistance systems (ADAS), battery management systems (BMS) in electric vehicles, and interior infotainment systems. Our IATF 16949 certification ensures that every board meets automotive standards for thermal stability and vibration resistance.
As the Port of Hai Phong transitions to automated operations, the demand for industrial-grade electronics has grown. Our PCBA solutions support automated guided vehicles (AGVs), automated crane controllers, and smart monitoring networks. Built using high-durability solder pastes and conformal coatings, these boards are designed to operate reliably in humid, high-salinity port environments.
Security is a key requirement for modern industrial parks like Trang Due and Deep C. We manufacture high-definition DVR assemblies, network switch boards, and wireless router PCBAs that power surveillance networks across factories. Our designs prioritize signal integrity and EMI shielding to ensure stable, 24/7 video recording and data transmission.
With Vietnam's focus on transition to green energy, regional manufacturing plants are incorporating solar-power management and efficient UPS systems. STHL’s heavy-copper power supply PCBAs manage power conversion and distribution effectively. Our automated thermal profiling and X-ray analysis ensure these systems operate with minimal thermal loss.
An overview of our standard operational limits, quality controls, and material profiles for global electronics manufacturing:
| Parameter | Standard Capabilities | High-Precision / Custom Limits |
|---|---|---|
| SMT Min Component Size | 0201 (inch) / 0603 (metric) | 01005 (0402 metric) |
| BGA Pitch Range | ≥ 0.4 mm pitch | ≥ 0.3 mm pitch (Ultra-Fine uBGA) |
| PCB Layer Counts | 1 to 24 Layers | Up to 48 Layers / Rigid-Flex Options |
| Quality Certifications | ISO 9001, ISO 14001 | IATF 16949 (Automotive), ISO 13485 (Medical) |
| Lead-Free Soldering | RoHS Compliant / SAC305 | High-melting leaded applications (Military/Aerospace) |
| Inspection Modes | 3D AOI & Visual Testing | X-Ray, In-Circuit Testing (ICT), Functional testing (FCT) |
Answering common questions from global OEMs, procurement leads, and engineers looking to supply electronics assembly services to Northern Vietnam.
Explore our range of custom assemblies, engineered to meet international quality standards across diverse industrial sectors.
Partner with STHL to combine Shenzhen’s component sourcing network with secure transport direct to your facility or assembly line in Hai Phong.
STHL PCBA
