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Your Trusted EMS Partner in China

STG provides turnkey electronics manufacturing services from PCB fabrication to PCB assembly and final product assembly. With over 20 years of experience, we deliver precision, reliability, and scalability for global clients.

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20+ Years of Excellence

As a leading electronic manufacturing service provider in China, STG Electronic Co., Ltd. has built a reputation for quality, innovation, and reliability across industries like automotive, medical, aerospace, and industrial control.

Turnkey PCB Assembly

From 1-24 layer PCBAs to full product assembly, we offer SMT, BGA, COB, through-hole, IC programming, functional testing, and supply chain management — all under one roof.

About STG Electronic

STG Electronic Co., Ltd. is a leading professional electronic manufacturing service provider based in Shenzhen, China. With over two decades of experience, we specialize in high-mix, low-to-medium volume production for clients worldwide.

STG Factory

Your Partner in PCBA Technology

We provide comprehensive turnkey PCB assembly services, including SMT, BGA, COB, through-hole assembly, IC programming, and functional testing. Our advanced equipment ensures precision and consistency across every production run.

  • 20+ Years in Electronics Manufacturing
  • ISO-Certified Quality Control
  • Global Shipping & Customs Support
  • Full Supply Chain Management
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Our Capabilities

From design to delivery, STG offers a full suite of electronics manufacturing services tailored to your project’s needs.

PCB Manufacturing

FR4, HDI, Heavy Copper, Aluminum, Multilayer, Flexible, Rigid-Flex, and Quick Turn PCBs.

PCB Assembly

SMT, THT, BGA, COB, double-sided, and mixed-technology assembly with AOI and X-ray inspection.

Design Services

PCB layout, schematic capture, DFM analysis, and design for manufacturability.

Electronic Assembly

Complete box build, cable harnessing, and system integration.

Enclosure Assembly

Final product integration, mechanical assembly, labeling, and packaging.

Supply Chain Management

Component sourcing, BOM analysis, counterfeit prevention, and customs clearance.

Our PCB Assembly Services

Explore our range of high-quality, precision-engineered PCB assembly solutions.

SMT Assembly

SMT PCB Assembly

High-speed placement using Fuji NXT and Yamaha lines. Supports fine-pitch components and ultra-small passives.

  • • 8 Fuji NXT & 2 Yamaha SMT lines
  • • SPI and FAI inspection
  • • Up to 01005 component size
BGA Assembly

BGA & COB Assembly

Advanced BGA rework and chip-on-board technology with X-ray and AOI verification.

  • • BGA rework station
  • • X-ray inspection available
  • • Underfill and epoxy dispensing
Through-Hole Assembly

Through-Hole Assembly

Manual and automated through-hole soldering with wave and selective soldering options.

  • • 4 wave soldering lines
  • • 4 manual soldering stations
  • • Lead-free and leaded options
Multilayer PCB

Multilayer PCB (1-24 Layers)

High-density interconnects and impedance-controlled designs for complex applications.

  • • Up to 24 layers
  • • HDI and blind/buried vias
  • • Impedance control
Aluminum PCB

Aluminum & Metal Core PCBs

Thermally efficient PCBs ideal for LED lighting, power supplies, and automotive systems.

  • • High thermal conductivity
  • • Dielectric insulation
  • • RoHS compliant
Flexible PCB

Flexible & Rigid-Flex PCBs

Space-saving designs for compact and dynamic applications in medical and aerospace.

  • • Polyimide and PET substrates
  • • Dynamic flexing support
  • • Controlled impedance
Quick Turn PCB

Quick Turn PCB Prototyping

Fast turnaround from 24 hours to 5 days for prototypes and NPI support.

  • • 1-10 layer boards
  • • 24h, 48h, 5-day options
  • • DFM feedback included
Functional Testing

Functional & ICT Testing

Comprehensive testing including FCT, ICT, X-ray, and AOI to ensure 100% reliability.

  • • Custom test fixtures
  • • Voltage, RF, GPS, WiFi testing
  • • Automated test reporting

Trusted by Global Clients

20+
Years Experience
8
SMT Lines
6
AOI Machines
20+
Test Stations

Frequently Asked Questions

What types of PCBs do you manufacture?

We produce FR4, HDI, Heavy Copper, Aluminum, Multilayer (up to 24 layers), Flexible, and Rigid-Flex PCBs.

Do you offer component sourcing?

Yes, we provide full component sourcing, BOM analysis, and counterfeit prevention as part of our turnkey service.

What is your typical lead time?

Prototypes: 24h–5 days. Mass production: 7–15 days depending on complexity and volume.

Do you support small batch and prototype orders?

Absolutely. We specialize in low-to-medium volume production and offer quick-turn prototyping.

What certifications do you have?

Our facility is ISO-certified with strict quality control processes including AOI, X-ray, ICT, and FCT testing.

Get in Touch

Ready to start your next electronics manufacturing project? Contact us today for a quote.

Contact Information

Email: [email protected]

Phone: +86 075527929725

Address: 5F, A6 Building, Hengkeng Industrial Park, Guantian, Shiyan Street, Baoan District, Shenzhen, China

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