Quick detection of defects in the protective coating of electronic assemblies

The reliability of protective-coated electronic assemblies with regard to climate and harmful gas safety depends on the freedom from interference and the closed nature of the coating. In particular, an edge loss at connection contacts and pore channels in coat pool areas have a damaging effect.

The Zestron Coating Layer Test reveals defects in protective coatings or non-closed layers in so-called micro-coatings caused by blackening.

The test complements the standardised methods for coating thickness measurement by enabling quick and non-destructive proof of closed and dense coatings.

This new test from Zestron can also be used in production for cost-effective randomised testing.

Zestron focuses on being an architect for reliable cleaning processes within electronic and metal parts cleaning applications. The company’s aim is to provide a cleaning process in which the quality of the cleaning result is the same after 300,000 cycles as it was at the initial start-up, irrespective of quantity and performance requirements.

More than 20 per cent of staff is dedicated to research and development programmes – work that has resulted in 20 registered product patents.

Environmental protection and safety, plus cost-efficiency, are key to the development of new cleaning processes. The company has been ISO 9001 certified since 1995 and production takes place in accordance with the ISO 14000 guidelines.

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