M
MEFRON
Automotive

Automotive ECU Assembly

High-reliability PCB assembly for automotive engine control units with IATF-grade quality control and conformal coating.

SMT AOI IATF 16949 Conformal Coating High Volume
50,000+
Units Delivered
98%
Defect Reduction
100%
On-Time Delivery
Class 3
IPC Class
Automotive ECU Assembly

About the Project

Mefron Technologies delivered a high-volume PCB assembly program for a leading Tier-1 automotive supplier. The project involved complex Surface Mount Technology (SMT) PCB boards used inside Engine Control Units (ECUs) that operate in extreme thermal and vibration environments. Our team applied IATF-grade quality control processes, including 3D solder paste inspection, automated optical inspection (AOI), and X-ray inspection for hidden solder joints.

Project Highlights

SMT assembly with 0201 passive components and fine-pitch QFP/BGA ICs
100% automated optical inspection (AOI) and 3D solder paste inspection (SPI)
Conformal coating application for moisture and vibration protection
IATF 16949 quality standards compliance across all processes
Full functional testing and 48-hour burn-in for every unit
Controlled ESD environment with IPC-A-610 Class 3 workmanship

Project Outcome

Achieved a 98% reduction in field defect rate and delivered 50,000+ units on-time across three production batches for global automotive OEM deployment.

Services Used

  • PCB Assembly
  • Box Build Assembly
  • Product Validation Testing

Industry

Automotive

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