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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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Function and energy efficiency test

The function and energy efficiency test comprehensively evaluates the hydraulic performance and energy-saving potential of liquid-cooled pumps through the determination of the flow-head curve, the energy efficiency test under rated/frequency conversion conditions, and the start/stop performance and flow regulation response test.

Function and energy efficiency test
Function and energy efficiency test

Test Background


The flow-head characteristics, speed regulation performance, and energy efficiency level of liquid-cooled pumps directly affect the control ability of the CDU and the system energy consumption, and are the key links in the energy efficiency optimization of the liquid cooling system.

 

Test Introduction


The function and energy efficiency test comprehensively evaluates the hydraulic performance and energy-saving potential of liquid-cooled pumps through the determination of the flow-head curve, the energy efficiency test under rated/frequency conversion conditions, and the start/stop performance and flow regulation response test.

 

Testing Objectives

 

Plot the complete flow-head curve

Determine the pump efficiency at different speeds

Verify the pressure shock during the start/stop process

Evaluate the flow regulation response speed and accuracy

 

Test Standards

 

GB/T 3216 Rotodynamic pumps—Hydraulic performance acceptance tests

GB/T 13468 Energy efficiency evaluation of pump systems

ISO 9906 Hydraulic performance testing of pumps

T/CESA 1249.3-2023 Pump efficiency requirements

 

Applicable Products/Fields


Suitable for various types of liquid-cooling circulation pumps, variable-frequency pumps, magnetic pumps, canned pumps, etc.

 

Test Content

 

Flow-head curve test: Measurement at multiple operating points

Energy efficiency test: Input power and hydraulic power at different flow rates

Start/stop test: Pressure fluctuations during the start-stop process

Flow regulation response: Response time and accuracy of variable-frequency regulation

 

Project Advantages

 

Synchronous high-precision measurement of flow, pressure and power

Capable of simulating actual pipeline resistance characteristics

Provides energy efficiency rating and optimized operation suggestions

 

Laboratory Configuration

 

Pump performance test platform (closed-loop circulation)

Electromagnetic flowmeter (accuracy 0.5%)

Pressure sensor (accuracy 0.25%)

Power analyzer

Frequency conversion control system

 

FAQ
Q: Does the efficiency of the variable frequency pump decrease at low flow rates? A: Yes. The efficiency of the pump decreases when it deviates from the design operating point. The inefficient area needs to be avoided in the CDU control strategy.

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