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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.
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Safety test

The safety test covers pressure resistance test, electrical safety test, leakage protection test and sealing test, comprehensively verifying the safety performance of the liquid-cooled pump under rated working conditions and abnormal conditions.

Safety test
Safety test

Test Background


As the power core of the CDU and the liquid-cooling system, the electrical safety, pressure-resistance ability and sealing performance of the liquid-cooling pump are directly related to the safe operation of the system. Once it fails, it may lead to system shutdown or leakage.

 

Test Introduction


The safety test covers pressure resistance test, electrical safety test, leakage protection test and sealing test, comprehensively verifying the safety performance of the liquid-cooled pump under rated working conditions and abnormal conditions.

 

Testing Objectives

 

Verify the structural strength of the pump body under 1.5 times the working pressure

Ensure the reliability of electrical insulation and grounding protection

Detect the leakage risk of the pump body and its connections

Verify the response reliability of the leakage protection device

 

Test Standards

 

T/CESA 1249.3-2023 CDU technical specification (pump part)

GB/T 1032 Test methods for three-phase asynchronous motors

EN/UL 62368-1 Electrical safety requirements

ISO 19879 Sealing test of hydraulic components

 

Applicable Products/Fields


Suitable for CDU circulating pumps, secondary-side pumps, primary-side pumps, variable-frequency pumps, etc.

 

Test Content

 

Pressure resistance test: Maintain the pressure at 1.5 times the working pressure for 30 minutes

Electrical safety test: Insulation resistance ≥ 100 MΩ, withstand voltage 1500 V

Leakage protection test: Automatic shutdown response when simulating leakage

Sealing test: Measurement of static/dynamic leakage rate

 

Project Advantages

 

Comprehensive electrical and hydraulic safety test capabilities

Capable of simulating multiple fault modes

Provides safety margin evaluation and certification support

Laboratory Configuration

Hydrostatic test bench

Safety comprehensive analyzer

Leakage simulation test platform

Helium mass spectrometry leak detector

 

FAQ
Q: What is the protection level requirement for the liquid-cooled pump? A: Usually, it is required to be above IP54 to ensure dust and splash-proof. For outdoor applications, IP65/IP67 is required.

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Further reading
Function and energy efficiency test Reliability and durability test Compatibility test
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