Research on Test Method for Measuring Tin Whisker on Electric and Electronic Products in Vehicles
The tin whisker of electric and electronic products may lead to failure in the service of vehicles.In this paper,analyzes the harm of tin whiskers,introduces the growth mechanism,inducing factors and preventative actions.Focuses on the accelerated tin whisker growth tests,such as temperature/humidity cycling test,high temperature storage test,temperature shock test.It describes measuring of whisker length by optical microscope or SEM/EDX,acceptance criteria of tin whisker,provide test guidance for the high reliability of lead-free devices in the automotive industry.
tin whiskertest conditions of whisker growthwhisker inspectionacceptance criteria for whisker
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