Cause analysis on abnormal failure of copper-substrate pin fin heat sink for new energy vehicle
Engineering Failure Analysis（2023）
Abstract
•Abnormal failure of the pin fin heat sink for new energy vehicle was comprehensively analysed.•Four kinds of typical manufacturing defects were systematically characterized and discussed.•Causes of defects were all determined and corresponding countermeasures were proposed.
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Key words
New energy vehicles,Power module,Pin fin heat sink,Manufacturing defect,Failure analysis
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