CAF TV for Material Characterization

CAF (Conductive Anodic Filamentation) is normally characterized as an effect subject to the influences of design, process and materials. This adds complication to product development for laminate manufactures as lengthy failure analysis is normally required when CAF testing is performed using standard test vehicles. The project aim is to develop a test vehicle that will allow performance evaluation to be limited to laminate material only, thus eliminating the variables of design and process. It is expected that the project will lead to more focused and quicker laminate testing and development for CAF resistance.

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Idea Information


CAF testing is traditionally a lengthy process carried out using standard test vehicles fabricated to assess materials and design features. Inevitably there are also process influences that affect performance outwith materials or design. It is therefore difficult to solely assess the influence of materials.


Conventional CAF test vehicles evaluate the influence of design, process and materials simultaneously and are not designed to give performance information related to materials alone.  

Definition Information

Goals / Benefits: 

To develop a Test Vehicle and method that will allow CAF performance evaluation to be limited to materials only.

Enable rapid CAF evaluation for material qualification.

Provide inputs to international standards bodies to develop a “materials only” CAF test methodology.