End-to-End EMS and PCBA Manufacturing Support
STHL provides end-to-end EMS and PCBA manufacturing support for overseas B2B hardware projects. Our service scope covers components sourcing, PCB design and layout, PCB manufacturing, PCB assembly, testing and inspection, and box build integration under one coordinated workflow.
Buyers can use this page to match STHL services with their current project stage, from early engineering review and prototype builds to low-volume PCBA production, repeat orders, functional modules, and complete system delivery. For quotation review, buyers can prepare BOM, Gerber files, assembly drawings, quantity, target lead time, and testing requirements.
Operating since 2006, STHL works from a 10,000 m² self-owned facility with ISO Class 8 cleanroom support, 7 Panasonic high-speed SMT lines, and more than 200 skilled staff members, helping connect project review, material readiness, assembly, testing, and final delivery.
Complete EMS Workflow
Real PCBA Manufacturing
Flexible Project Models
Global B2B Support
Which Service Scope Fits Your Project?
Different projects need different EMS support. Use the guide below to find the service path that matches your current files, material model, and production stage.
|
Buyer Situation |
Suggested STHL Service Path |
|---|---|
| Early design or schematic stage | PCB Design and Layout + PCB Prototyping |
| Gerber files ready, PCB needed | PCB Manufacturing |
| BOM review or long-lead components need to be checked | Components Sourcing + BOM Sourcing |
| Full material and assembly support needed | Components Sourcing + PCB Assembly |
| Customer-supplied or consigned components | Component Kitting + PCB Assembly |
| Assembly, testing, or programming required | PCB Assembly + Testing and Inspection |
| Complete product integration required | Box Build Assembly + Testing and Inspection |
| Repeat orders or low-volume production needed | PCB Assembly + Testing and Inspection + Components Sourcing |
How Our EMS Workflow Connects Each Service
STHL connects sourcing, design review, PCB fabrication, assembly, testing, and delivery into one coordinated EMS and PCBA workflow.
RFQ AND FILE REVIEW
BOM, Gerber files, CPL / pick-and-place file, assembly drawings, quantity, target lead time, and testing requirements are reviewed before quotation.
Engineering and Material Readiness
STHL checks design files, BOM status, component availability, approved alternatives, customer-supplied parts, and long-lead-time component risks.
PCB Fabrication and Assembly Preparation
PCB specifications, surface finish, panelization, stencil needs, SMT/THT process requirements, and production readiness are confirmed.
PCB Assembly and Process Control
SMT, THT/DIP, BGA, fine-pitch, mixed technology assembly, and in-process inspection are arranged according to the build requirements.
Testing, Box Build, and Delivery
AOI, X-ray, ICT, FCT, programming, final inspection, box build, labeling, packaging, and delivery preparation can be included when required by the project scope.
Compare Our EMS and PCBA Manufacturing Services
The table below helps buyers compare typical service scope, material coverage, precision requirements, handling size, and delivery references across different STHL EMS and PCBA services.
The delivery references below are provided for general planning only. Final delivery schedules depend on BOM readiness, material availability, PCB specifications, assembly complexity, testing scope, and confirmed project requirements.
|
Service |
Typical Delivery Reference | Materials / Process Scope |
Precision / tolerance |
Handling Size / Scope |
| Components Sourcing | 1–5 days common review reference; constrained parts may require longer | Approved supplier channels for ICs, passives, connectors, and project-specific components |
Per OEM spec |
Per BOM and sourcing scope |
| PCB Design & Layout | 2–5 days typical; expedited review may be available after file confirmation |
FR‑4, aluminum, polyimide, ceramic, rigid‑flex |
IPC‑aligned design precision |
Up to 510 × 460 mm |
|
PCB Prototyping |
Typical schedule based on prototype scope and file readiness |
Single/dual‑layer, multilayer, flex, rigid‑flex |
Typical fabrication tolerance ±0.002 in |
Up to 510 × 460 mm |
|
PCB Volume Manufacturing |
Confirmed based on volume, material status, and PCB specifications |
FR‑4, HDI, MCPCB, ceramic, flex |
±0.002 in (laser drilling) |
Up to 510 × 460 mm |
|
PCB Assembly |
Typical schedule depends on quantity, material readiness, and assembly complexity |
SMT, THT/DIP, mixed |
Placement accuracy ±40 μm; solder paste ±0.025 mm |
Boards up to 510 × 460 mm |
|
Testing & Inspection |
|
All PCBA outputs |
AOI inspection per process plan; X-ray 5 μm; SPI <10 μm; ICT/FCT per fixture | Per test platform and fixture scope |
| Box Build Assembly | Confirmed based on enclosure, cable, labeling, packaging, and functional requirements |
Metals, plastics, cables, connectors |
CNC ±0.003 in; injection ±0.005 in; harness ±0.01 in |
Size per project scope |
What to Send for a Faster EMS or PCBA Quote
A clear RFQ package helps STHL review the project faster and reduce repeated clarification before quotation. For EMS or PCBA manufacturing support, buyers can prepare the following information:
| RFQ Input | Why It Helps |
|---|---|
| BOM with manufacturer part numbers and quantities | Helps review sourcing, approved alternatives, and material risk |
| Gerber files and PCB specifications | Helps evaluate PCB fabrication and assembly requirements |
| CPL / pick-and-place file | Helps confirm placement data and SMT preparation |
| Assembly drawing if available | Helps clarify polarity, orientation, connectors, and special notes |
| Build quantity and project stage | Helps separate prototype, pilot, low-volume, and production needs |
| Target lead time | Helps align sourcing, PCB fabrication, assembly, and testing schedules |
| Testing requirements | Helps plan AOI, X-ray, ICT, FCT, programming, or functional testing |
| Box build, labeling, or packaging needs | Helps include enclosure, cables, labeling, packaging, and final integration |
What's Included in Our Quotation
Our EMS quotation covers both PCB fabrication and PCBA assembly. Each quotation or proforma invoice can include detailed specifications such as board stack-up, materials, surface finish, and assembly processes. Component sourcing, testing coverage such as AOI, X-ray, ICT/FCT, and packaging requirements can be itemized for transparency.
Customers can review material options, build quantities, lead time references, and testing requirements with our engineering and sales team to clarify the most suitable quotation scope. Delivery terms, payment conditions, applicable workmanship requirements, and quality documentation can also be confirmed to support clear project planning and supplier evaluation.
Project Types We Commonly Support
STHL supports PCBA and EMS projects across different hardware categories. The project type often affects material control, testing scope, documentation needs, and final delivery requirements.
| Project Type | Typical EMS / PCBA Needs |
|---|---|
| Industrial Control and Automation | Controller boards, I/O modules, industrial gateways, sensor interface PCBAs, and repeat production support. |
| Medical Electronics | Stable sourcing, documentation, testing, traceability, and project-specific quality review where applicable. |
| Automotive and Vehicle Electronics | Material approval support, process control, testing, and production consistency. |
| Communication and Industrial Networking | Gateway boards, communication modules, embedded terminals, and functional testing. |
| Energy and Power Electronics | Control boards, BMS-related assemblies, inverter controllers, and power management PCBAs. |
| IoT and Embedded Systems | Prototype builds, low-volume PCBA, firmware-related testing, and box build integration. |