Years of PCB
Assembly Expertise
STG Electronic Co., Ltd. is a professional electronic manufacturing service provider in China. With up to 20 years of experience in PCB assembly and electronic product manufacturing, we provide turnkey services including SMT, BGA, COB, through-hole assembly, IC programming, functional testing, and global delivery.
Our production resources include multi-function placement machines, ten-temperature-zone reflow ovens, wave soldering, BGA rework, AOI, ICT, and X-ray inspection equipment. Eight high-speed SMT lines, four reflow machines, four DIP lines, and four assembly lines support prototype and repeat production.
Fuji NXT and Yamaha precision lines
IQC, IPQC, and OQA process control
Prototype through repeat production
Customs clearance and worldwide shipping
Choose a focused service or combine our capabilities into one managed production program, from component sourcing to final enclosure assembly.
SMT, THT, and BGA assembly with precision equipment and rigorous inspection.
BOM review, component sourcing, lifecycle checks, alternatives, and coordinated material readiness.
Practical support from engineering review and prototype builds through stable repeat production.
SPI, AOI, X-ray, ICT, FCT, and project-specific inspection matched to production risk.
Complete box-build integration from bare PCBA to assembled and tested finished products.
Customs clearance for material importing and product exporting with coordinated global delivery.
We support standard and advanced board technologies for prototypes, small batches, and mass production, from single-layer to advanced HDI.
Polyimide-based flexible circuits for dynamic and space-constrained designs.
Rigid and flexible substrates combined for complex three-dimensional packaging.
Our customized PCB assembly, products, and services support industrial, medical, IoT, audio, transportation, and lighting applications worldwide.
Controls and instrumentation that require repeatable process quality and long-term reliability.
Documented manufacturing support for high-reliability assemblies with strict quality requirements.
Connected hardware from compact sensor boards to fully tested wireless assemblies.
Audio circuits, amplifiers, and acoustic electronics with controlled component selection and testing.
Transportation electronics planned around vibration, temperature, and application requirements.
LED driver boards, lighting controls, and metal-core assemblies optimized for thermal performance.
Our production resources cover PCB loading, solder-paste inspection and printing, high-speed placement, reflow, wave soldering, DIP assembly, inspection, and board processing.
Automated board loading for continuous SMT line feed.
3D inspection of solder paste volume and alignment.
High-precision automatic stencil printing for fine-pitch.
Fuji NXT and Yamaha lines with 0201 component capability.
Ten-temperature-zone reflow with precise profile control.
Lead-free wave soldering for through-hole components.
Stress-reduced board separation for assembled panels.
Integrated loading, printing, placement, and reflow workflow.
Intelligent BOM analysis and component verification to prevent errors and omissions.
Tests inductance, capacitance, and resistance parameters to verify part quality.
Checks PCB printing, component placement, and solder joints.
Detects shorts, missing, incorrect, or defective components on assembled boards.
Detects internal cracks, BGA voids, and hidden solder defects.
Performs project-specific functional tests on assembled boards.
High-speed surface mount technology assembly line.
Precision placement with 0201 and 0.4 mm BGA support.
Through-hole component insertion and wave soldering.
Controlled thermal profile for reliable SMT joints.
Automated optical inspection after SMT placement.
BGA and hidden-joint quality verification.
Spacious and organized production environment.
Climate-controlled, ESD-managed assembly area.
A controlled, traceable workflow that moves your project from files to finished product with visibility at each stage.
Share Gerber, BOM, quantities, drawings, and test requirements.
We check manufacturability, materials, sourcing risk, and test scope.
Review price, lead time, assumptions, and the recommended production plan.
Approve the project and move from prototype through repeat production.
Complete inspection, functional testing, packaging, and delivery.
IQC, IPQC, OQA, and ISO management processes support controlled PCBA manufacturing.
Support from SMT and DIP assembly through inspection, testing, and final assembly.
Production planning and project checkpoints keep committed delivery targets visible.
Technical engineers help resolve manufacturing questions across different customer requirements.
STG coordinates component sourcing, SMT assembly, DIP assembly, functional testing, case assembly, and delivery according to your PCB data and BOM.
Our quality system is supported by CE, FCC, ISO 9001:2015, ISO 14001:2015, RoHS, IPC, and relevant manufacturing standards.
The files and specifications that help engineering teams prepare a clearer manufacturing quotation.
How each inspection method answers different workmanship and functional risks.
What to lock before scaling a successful sample build into stable repeat production.
Share Gerber files, BOM data, quantities, inspection, testing, and delivery requirements for a practical production review.
Shenzhen, Guangdong, China
+86 755 2792 9725
Monday to Friday, 9:00-18:00 (GMT+8)
