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Printed circuit boards and their assemblies (PCB & PCBA) are the core components of electronic products, and their reliability directly determines the overall reliability of electronic products. To ensure and enhance the quality and reliability of electronic products, it is essential to carry out comprehensive physical and chemical analyses of failures, identify the underlying failure mechanisms, and then propose corresponding improvement measures. MTT possesses profound technical expertise in board-level failure analysis, a complete range of analytical methods, a vast database of case studies, and a team of experienced experts, providing you with high-quality and efficient failure analysis services.
The purpose of electronic component failure analysis is to employ a variety of testing and analytical techniques and procedures to identify the failure phenomena of electronic components, determine their failure modes and mechanisms, identify the ultimate root cause of failure, and propose recommendations for improvements in design and manufacturing processes. This helps prevent the recurrence of failures and improves the overall reliability of the components.
The continuous rise in complexity and performance requirements of integrated circuits, combined with potential risks across design, manufacturing, packaging, and application stages, has led to frequent occurrences of critical failure modes such as short circuits, open circuits, leakage, burnout, and parameter drift. These issues not only result in costly device scrapping and system downtime but also often trigger disputes over responsibility among designers, foundries, packaging and testing houses, and end-users, causing significant economic losses and reputational risks.
The performance requirements for polymer materials continue to rise, while differences in understanding of high-demand products and processes between customers and suppliers often lead to frequent failures such as fracture, cracking, corrosion, and discoloration. These failures frequently cause disputes over responsibility and result in significant economic losses.
The increasingly harsh service environments of metal components place higher demands on material performance and structural reliability. However, factors such as design flaws, material defects, manufacturing deviations, or improper use can readily trigger typical failures including fatigue fracture, stress corrosion cracking, hydrogen embrittlement, creep, wear, and overload deformation.
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Meixin Testing leverages its technological edge in constructing massive failure databases, showcasing its capabilities through comprehensive case studies, solutions for complex scenarios, partnerships with leading enterprises, and systematic intellectual property. Drawing on millions of failure analyses, it delivers precise insights into root causes, enabling inspection reports to provide robust support for clients' quality upgrades and achieve zero failures.
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MTT is a nationally accredited commercial third-party laboratory. We specialize in providing testing services, technical consulting services, and solution services to clients across industries including electronics manufacturing, automotive electronics, semiconductors, and aerospace materials.
Maxin Testing operates laboratory facilities in Shenzhen, Suzhou, and Beijing, featuring multidisciplinary testing and analytical laboratories. The company pioneers an industrial hospital service model grounded in materials science engineering and electronic reliability engineering.
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Non-metallic inclusions

Non-metallic inclusions in steel can reduce the mechanical properties of steel, especially the plasticity, toughness and fatigue limit. In severe cases, they can also cause cracks in the steel during hot working and heat treatment or sudden brittle fracture during use.

Non-metallic inclusions

| Test Objective

 

Non-metallic inclusions in steel can reduce the mechanical properties of steel, especially the plasticity, toughness and fatigue limit. In severe cases, they can also cause cracks in the steel during hot working and heat treatment or sudden brittle fracture during use. Non-metallic inclusions also promote the formation of hot-worked fibrous structures and banded structures in steel, making the material anisotropic. In severe cases, the transverse plasticity is only half of the longitudinal plasticity, and the impact toughness is greatly reduced. Therefore, for steels used in important applications (such as bearing steel, spring steel, etc.), the quantity, shape, size and distribution of non-metallic inclusions need to be inspected.

 

 

| Service Products / Fields

 

Stainless steel, high-speed steel, alloy steel, die steel, etc.

 

 

| Testing Procedure

 

Sampling → Cleaning → Mounting → Grinding → Polishing → Observation

 

 

| Testing Standards

 

GB/T 10561-2005 Determination of content of nonmetallic inclusions in steel - Micrographic method using standard diagrams

 

ASTM E45-2013 Test methods for determining the inclusion content of steel

 

 

 | MTT Advantages

 

1. Professional Team: Equipped with a number of highly experienced testing engineers and technical experts.

 

2. Advanced Equipment: Equipped with internationally leading testing instruments to ensure accuracy and reliability of results.

 

3. Efficient Service: Rapidly respond to customer needs and provide one-stop, high-efficiency inspection services.

 

4. Authoritative Certification: The laboratory is certified by ISO/IEC 17025, ensuring that test reports have international credibility.

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Further reading
Shear/Torsion Test Microscopic Metallographic Analysis Wear Test High-Temperature Mechanics Peel Strength Test Surface Roughness
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