Explore our specialized production lines designed for extreme engineering reliability and high-speed electrical stability.
In electronic manufacturing, your Gerber file is the blueprint. A single misinterpretation of copper traces, solder mask clearance, or drill layout can cause catastrophic failure.
At Shenzhen STHL, we don’t just import Gerber files (whether RS-274X, Gerber X2, or IPC-2581); we perform a thorough Design for Manufacturing (DFM) check. This technical verification ensures that track widths, copper spacing, via sizes, and thermal reliefs are optimized for high-yield production.
A high-quality Gerber service serves as the core layer of control, preventing issues like component solder bridging, tombstoning, and signal integrity degradation before the fabrication begins.
Since 2006, Shenzhen STHL has driven manufacturing innovation, delivering complex end-to-end EMS services to global markets.
Shenzhen STHL is a premier Electronics Manufacturing Services (EMS) provider in China. We support the entire product lifecycle: PCB layout assistance, global components sourcing, PCB fabrication, SMT and THT assembly, cable assemblies, enclosure box-builds, and functional testing.
Our 10,000 sqm production facility runs 7 SMT lines, 2 DIP/THT lines, 2 functional test lines, and 2 complete finished device box-build lines, all run by over 220 skilled workers.
Years of EMS Experience
Production Facility
Automated SMT Lines
Regions Supported Globally
Our capabilities span high-density surface mount technologies (SMT) and high-reliability through-hole technology (THT) insertion.
We assemble high-density BGA, micro-BGA, and chip-scale packages with ball pitches as small as 0.3mm. Our high-precision placement equipment ensures reliable joint alignment under dynamic temperature profiles.
We handle complex thermal pad designs and leadless packages. Our production lines feature custom stencil profiles to ensure the correct paste height for QFN and QFP packages, preventing solder shorts.
Equipped for intricate component stackups, our equipment mounts passive components down to 01005 sizes, satisfying demand for miniaturization in aerospace, communication, and medical systems.
For industrial components subject to mechanical stress, STHL maintains dedicated manual and semi-automated through-hole lines. Heavy connectors, transformers, electrolytic capacitors, and power switches are placed and soldered using wave soldering or hand-soldering processes.
Our THT processes are designed for reliability, employing custom pallets, wave solder fixtures, and ESD protection controls. We conform to strict IPC-A-610 Class 3 workmanship criteria for high-performance electronics.
We provide unified fabrication, assembly, box-build, and test solutions, simplifying your procurement and production pipeline.
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 many customers from various industrial 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 to your customers, we can supply the full support.
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.
Electronic designs perform differently depending on their environment. We tailor our Gerber analysis and material choices to meet specific localized requirements.
High-altitude environments demand low outgassing components and thick copper traces to handle thermal dissipation in low-convection settings. STHL provides Class 3 PCB fabrication with heavy TG polyimide base materials, designed to survive severe vibrational stress and thermal cycling.
Under-the-hood electronics demand IATF 16949 compliant processes. We execute strict DFM checks on Gerber files for metal-clad (aluminum) and thick copper PCBs, managing high-power conversions in EV charging systems and power inverter assemblies.
For critical patient monitoring devices, precision signal transmission is crucial. STHL uses ISO 13485 manufacturing processes, utilizing high-speed FR4, low dielectric constant (Dk) laminates, and clean laser drilling to support noise-sensitive medical diagnostics.
How STHL leverages China's premium electronics ecosystem to de-risk your production timeline and optimize manufacturing costs.
Manufacturing in Shenzhen allows STHL to source and build products quickly. Located close to global component hubs and raw material fabricators, we turn around raw PCB manufacturing in 3 to 5 days and SMT prototyping in 24 to 48 hours.
Our component team maintains direct relationships with authorized global distributors (Mouser, DigiKey, Arrow) and local chip manufacturers. This dual-sourcing strategy allows us to source genuine parts even during market allocations and supply chain disruptions.
Direct supplier verification networks integrated directly into STHL ERP systems.
As board layouts shrink and clock speeds rise, STHL develops processes to meet future design challenges.
Increasing laser-drilled microvia capabilities, sequential build-up (SBU) processes, and stacked vias to support compact multi-layered layouts down to 3mil line widths and spacing.
Expanding manufacturing lines optimized for low-loss materials (Rogers, Teflon, Nelco) to handle 5G millimeter-wave, automotive radar, and high-speed satellite communications.
Implementing low-emission manufacturing lines and halogen-free substrate options, complying with evolving global ecological and chemical regulations.
We build to international quality regulations, ensuring your electronics are compliant and built to last.
Automotive grade quality management systems ensuring low defect rates and long-term reliability under environmental stress.
Strict trace controls and process validation systems for manufacturing medical instrumentation and monitoring devices.
Assembly procedures tailored to medical, aerospace, and defense applications requiring continuous, uninterrupted performance.
Strict selection of materials and lead-free soldering processes, meeting European environmental and product safety standards.
Technical answers to common questions about PCB Gerber preparation, manufacturing, and assembly at STHL.
From consumer voice interfaces to high-current power solar inverters, we support a wide range of electronic applications.
STHL PCBA
