06 | How Dangerous are Particles Especially When it Comes to High Voltage Applications?

Find out the critical impact of particles on high voltage electronic assemblies' reliability

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Particles can lead to malfunctions. But not every particle that is present on a PCBA’s surface is automatically considered as dangerous. In the video, Stefan Strixner explains why looking at the particle material is the key and how the actual risk for causing failures can be estimated.



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A laboratory employee sits at his desk and looks at a picture of an electronic assembly on the computer screen to analyse the purity determination. | © @The Sour Cherry Fotografie - Michaela Curtis

Risk Assessment of Particles on Electronic Assemblies

We check the safety of your assembly with regard to short circuits and impairment of insulation coordination triggered by conductive particles.

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An engineer performs a routine test to validate the protective coating of the PCB. | © @The Sour Cherry Fotografie - Michaela Curtis

Risk Assessment of Leakage Currents and Condensation

We determine the hygroscopicity and corrosivity of ionic impurities and thus the risk of leakage currents and condensation.

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A laboratory employee sits at a desk in front of a microscope and carries out a visual damage analysis to determine the contamination of the electronic assembly. | © @The Sour Cherry Fotografie - Michaela Curtis

Conformal Coating: Validation and Routine Testing

The protective effect of the coating against electrochemical migration, leakage current and corrosion is verified by means of tests.

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