Explore our advanced printed circuit board assemblies engineered for critical automotive, industrial, and medical applications.
Established in 2006, Shenzhen STHL has grown into a premier provider of Electronics Manufacturing Services (EMS) in China. We serve a global clientele across the entire product lifecycle, offering seamless integration from PCB layout and component sourcing to advanced SMT/THT assembly, cable assembly, box-build, and rigorous functional testing.
Our 10,000 square meter state-of-the-art facility is equipped with 7 automated SMT lines, 2 DIP/THT lines, 2 functional testing lines, and 2 finished device assembly lines. Backed by a dedicated team of over 220 professionals, we deliver high-mix, high-reliability manufacturing solutions that meet the stringent demands of modern industries.
How modern electronics contract manufacturing is evolving to support high-density, smart, and sustainable technologies.
As devices shrink, EMS providers must master ultra-fine pitch components. STHL utilizes advanced placement systems capable of handling Ball Grid Arrays (BGA), Micro-BGA (uBGA), and Package-on-Package (PoP) configurations down to 0.35mm pitch with micron-level accuracy.
The rise of Electric Vehicles (EVs) and Advanced Driver Assistance Systems (ADAS) demands zero-defect manufacturing. Compliance with IATF 16949 ensures that safety-critical components, such as Supplemental Restraint Systems (SRS) and IMUs, undergo rigorous trace-level quality control.
Environmental sustainability is no longer optional. Leading EMS factories in China are transitioning to lead-free, halogen-free processes, utilizing eco-friendly flux and energy-efficient reflow ovens to minimize carbon footprints while ensuring compliance with global environmental directives.
Surface Mount Technology (SMT) is the backbone of modern electronics. At STHL, we handle a wide array of advanced components with extreme precision. Our SMT lines feature high-speed pick-and-place machines, solder paste inspection (SPI) systems, and multi-zone reflow ovens to guarantee optimal thermal profiling.
We specialize in complex component packages, including:
While SMT dominates modern designs, Through-Hole Technology (THT) remains vital for components subjected to mechanical stress, high power, or high voltages. STHL maintains robust THT capabilities to deliver comprehensive hybrid PCBA solutions.
Our THT assembly services include:
From initial design concept to final boxed product, we manage every step of the manufacturing lifecycle.
Operating 7 automated SMT lines and 2 DIP lines, we handle prototype runs to high-volume production with equal efficiency, ensuring precise component placement and robust solder joints.
From simple single-sided boards to complex multi-layer rigid, flexible, and rigid-flex PCBs. We utilize premium base laminates to meet exact impedance and thermal requirements.
Leveraging a vast, audited global supplier network to secure genuine, traceable components. We mitigate supply chain risks, counterfeits, and long lead times.
Custom wire harness and cable manufacturing, including shielding, overmolding, and specialized connectors, tailored for demanding industrial and automotive environments.
Complete system integration. We assemble the PCBA into its final enclosure, route internal cabling, install software/firmware, and perform final packaging.
Custom testing rigs simulate real-world operating conditions. We verify analog, digital, and RF performance to ensure 100% functional yield before shipment.
How STHL delivers tailored electronics manufacturing services across diverse global industries.
Medical devices require absolute reliability. We manufacture PCBAs for CT scanners, medical barcode scanners, and patient monitoring systems, ensuring full traceability and compliance with FDA-equivalent standards.
From in-vehicle infotainment and GPS navigation to safety-critical Supplemental Restraint Systems (SRS) and Inertial Measurement Units (IMU), our processes are optimized for zero-defect automotive performance.
We support the green energy transition by manufacturing robust controllers for wind power systems, photovoltaic (PV) module monitors, and online water quality analyzers designed to withstand harsh outdoor environments.
Get answers to common queries regarding our capabilities, quality control, and turnkey EMS processes.
Discover our specialized capabilities in medical scanning, smart IoT, and high-performance communication modules.