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Precision Matters: Navigate EMS Company Selection Through Product Testing

Electronics manufacturing service (EMS) companies play a crucial role in manufacturing electronics for their clients efficiently and effectively. By outsourcing electronics production to experienced EMS providers, OEM companies can focus on product development while relying on the manufacturing expertise of EMS firms. However, with the large number of EMS companies present in the market today, choosing the right manufacturing partner is important. When finding an EMS company, evaluating its product testing practices is crucial to ensure quality and reliability. Read on to learn more.

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The Most Common and Reliable Testing Methods

There are several testing methods available to EMS providers, each serving different quality control functions. Carefully screening electronics through the appropriate tests helps an EMS company catch defects early and minimize failures. Common and reliable testing methods include:


  1. AOI (Automated Optical Inspection)

AOI is useful for detecting catastrophic failures and quality defects. High-resolution cameras efficiently scan PCBs and components to spot issues like missing components, improper orientation, debris, shorted pads, or scratches. A professional EMS company uses state-of-the-art AOI systems that can examine thousands of units per hour, hence improving production efficiency.


  1. SPI (Solder Paste Inspection)

SPI examines the amount, position, and shape of solder paste applied to stencil apertures to detect issues with solder paste printing before assembly. Cameras precisely measure the volume, slope, and area of paste deposits to ensure sufficient paste is applied in the right location on the PCB for defect-free joints to form.


  1. ICT (In-Circuit Testing)

ICT checks for problems like short circuits, open circuits, or improperly welded components. Sophisticated ICT machines utilize precise testing probes to simultaneously check multiple circuits and components for electrical continuity and performance before final assembly. This helps an EMS company find assembly defects.


  1. FCT (Functional Circuit Testing)

FCT verifies that aspects like voltage, current, power, frequency, and other parameters are within specifications using thorough testing procedures. Complex FCT rigs simulate circuits with power and input signals while monitoring output waveforms to validate full functionality before customer shipment. Both ICT and FCT test methods expose potential assembly/performance flaws.


  1. Reliability Tests

Reliability tests reveal potential quality issues by simulating the effects of temperature, vibration, humidity, and other stresses on the product over time in specially designed test chambers. Accelerated life testing helps ensure that the product can withstand long-term environmental stresses customers may subject it to.


A reliable EMS company implements various testing methods throughout the manufacturing process. Inspection begins at component sourcing and continues after key steps like printing, soldering, and assembly. Final testing typically includes functional and environmental evaluation. Early testing catches issues before downstream impacts. Process monitoring and regular audits maintain standards. With a ‘test as you go’ approach, defects can be quickly addressed to assure reliability. This demonstrates the company’s commitment to quality.


myACT – Your Trusted Electronics Manufacturing Services Provider

myACT is one of the leading electronic manufacturing services companies with over two decades of industry experience. With three factories in China and over 4,000 employees, including 200 R&D staff, we have the resources and expertise to handle large production volumes. Committed to innovation, we focus on industries like ICT, energy, automation, and more.


At myACT, we provide full-service EMS, including portable power stations, solar panels, energy banks, LED solutions, and more. Our advanced testing systems monitor quality throughout the manufacturing flow. As an EMS company, we have many key advantages, including:

  1. Large-scale manufacturing expertise to efficiently produce high volumes of diverse products
  2. Wide range of customizable product solutions across multiple industry categories
  3. Advanced R&D center with talented engineers developing cutting-edge technologies
  4. Over 40 SMT lines, 30 DIP lines, and 30 assembly lines support lean production with the highest safety and quality standards like IATF16949 certification
  5. Robust quality management system utilizing extensive multi-point inspections and reliability tests
  6. Dedication to superior quality, functionality, and customer service reflected in independently-tested, top-performing solutions

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Overall, carefully evaluating a potential EMS company based on its product testing practices helps ensure the quality and reliability of outsourced electronics manufacturing. Companies that implement various inspection and testing methods leveraging the latest technologies throughout the production flow provide confidence that products meet specifications. The reputed solutions provider myACT is a recommended choice. With over two decades of expertise, we offer a trusted solution for full-service EMS and reliable energy product manufacturing. Contact us to learn how our team of experts can fulfill your specific electronics manufacturing needs.

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