01
Case StudySmart EV Charger Box-Build
7kW AC charger, PCBA + harness + metal chassis, 100% hi-pot + leakage + CE ship.
Key Specs
7kW · CE · 10k/mo
OEM Manufacturing
Overall Assembly & Box-Build
Box-Build · FCT · Burn-In · Pack & Ship
Turn-key box-build integrating PCBA, harness, enclosure, and BOM accessories. ESD workbenches, cleanroom, in-line ICT/FCT, burn-in, thermal cycling, vacuum pack, labeling, and direct cross-border shipping.
Customer QMS & Regs
Quality Assurance
Dedicated engineer
≤ 48h
R&D + Mfg in one roof
4 R&D / Mfg Sites
Cumulative deliver
500+ projects
Manufacturing quality
Core Advantages
10+ years of HW/SW co-development expertise, with a dedicated engineering pod for every project.
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01NDA-Protected Engagement
Formal NDAs are signed before every engagement — from concept scoping, schematics, and firmware to BOM selection — so customers know their proprietary product roadmaps stay fully confidential.
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02One-Stop R&D + Manufacturing
Electronic product development, MCU/MPU firmware, circuit design, PLC, in-vehicle telematics, industrial automation, post-R&D OEM and box-build assembly — all under one roof with zero hand-off friction.
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03High Q/E/S, Low Cost Tenet
We consistently adhere to the tenet of "High Quality, High Efficiency, High Service, Low Cost, with Continuous Customer Satisfaction" — going all-in on every deliverable to meet and exceed customer needs.
Why choose STS
Service Highlights
- 01
Class 10K cleanroom + ESD full-process control
- 02
In-line FCT · Burn-in racks · Thermal cycling chamber
- 03
Vacuum bag + carton + pallet + direct global logistics
At a glanceOEM Manufacturing
Class 10K cleanroom + ESD full-process control✓
In-line FCT · Burn-in racks · Thermal cycling chamber✓
Vacuum bag + carton + pallet + direct global logistics✓
Engineer response≤ 48h
Delivery process
Process & Delivery
End-to-end development methodology ensuring predictable and traceable milestones.
Phase 101
DFM Manufacturability Review
50+ manufacturability checks on Overall Assembly & Box-Build BOM / PCB / structural drawings. DFM report issued with joint engineering optimization to avoid production re-spins.
Phase 202
Low-Volume NPI Pilot
First-article (FAI) full-param inspection + 5~50 unit pilot run. SPC analysis, key processes CPK ≥ 1.33 gate before mass production.
Phase 303
High-Volume Stable Production
Full MES traceability. IQC / IPQC / OQC 3-stage QC, 100% in-line inspection at key stations — compliant with customer QMS and regulatory requirements.
Phase 404
After-Sales & Continuous Improvement
8D / 5-Why complaint handling, annual PPAP refresh, monthly DPMO reporting. 1:1 customer engineering counterpart driving PDCA kaizen.
Track record
Case Studies Gallery
Selected production programs — the leap from PoC to millions of units.
2013 → now · 500+ projects
02
Case StudyOutdoor Industrial ODU Box-Build
Outdoor ODU, full IP67 potting seal, -40℃ cold boot verified.
Key Specs
IP67 · -40℃ · 5k/mo
03
Case StudyPremium Consumer Device Box-Build
Retail kit color box + foam liner + accessories bundle, 100% out-of-box audit + QR trace.
Key Specs
Gift box · QR trace · Global direct ship
Ready to kick off your project?
Overall Assembly & Box-Build consulting, quotation, or DFx review — 1:1 engineer response within 48h.