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CENTRE FOR ELECTRONIC CORROSION

- Environmental effects on electronic systems and reliability issues

CELCORR Research Group at DTU is a key player building R&D based proactive solutions to prevent corrosion in all electronics systems including Power Electronic Devices and systems, a key partner in building robust and reliable electronics for green transition technologies. We help industries worldwide to implement feasible corrosion preventing solutions to avoid sudden functional failures in electronics exploiting both intrinsic and extrinsic solutions through our various collaborative projects and CreCon Industrial Consortium.

 

CELCORR group has over 16 years of research and development expertise in environmental effects on electronics and finding preventive solutions. Using our unique expertise on materials, corrosion and electronics, important for this interdisciplinary area, we work on all aspects of environmental effects on electronics such as effects of humidity and gases, and resulting in functional issues due to electrochemical failure modes such as Surface Insulation problems, Electrochemical Migration (ECM), Conductive Anodic Filament (CAF), and other failure modes. Our work focus on measures to improve humidity robustness such as Prevention, Protection, and Prediction. We closely work with electronics industries on their corrosion reliability and robustness issues through various joint projects and collaboration modes.


PCBA Process Cleanliness and humidity robustness

Understanding residues from different PCBA manufacturing process and how they influence climate robustness and defining ways to achieve better cleanliness.


Conformal Coating, Potting, and polymer materials...

CELCORR activities in this field focus on developing new conformal and understanding issues for attaining good performance for conformal coatings on PCBA surface.


Humidity flow models and design verification tools...

CELCORR work on COMSOL based humidity/temperature flow model enclosure design for electronics has resulted Design verification model Apps.


Tailoring PCBA surface for non-merging condensed...

Work in this area focus on how tailor PCBA surface to form continuous water layer during condensation including High voltage PCBA design.



Electrochemical modelling tools for mapping leak...

Research in this area focus on building COMSOL based Electrochemical modelling tools that can be used for predicting leak current possibilities on a layout based on design characteristics, bias levels, and exposure conditions e.g. RH and T.


Corrosion electronics components under gaseous...

Research work in this area focus on building Gas/Humidity testing systems for use of H2S, SO2, Flower of sulphur testing.

Upcoming events:


CELCORR organizes yearly “Climatic reliability seminar” at DTU. CELCORR is also part of Working Party 23 on Corrosion Reliability of Electronics under European Federation of Corrosion. The 10th Climatic reliability seminar will hosted at DTU on 20-21 March 2025. More details about EFC WP23 can be seen here:
https://efcweb.org/Scientific+Groups/WP23_+Corrosion+Reliability+of+Electronics-p-54.html

 

Another yearly event is a session on “Corrosion reliability of Electronics” as part of the European Corrosion Congress (Eurocorr). More details can be seen here: https://efcweb.org/Events/Calendar+of+events/EUROCORR.html






Climate Classifications for Electronics Reliability

Research work in this area developed climate zone map based on global climate data (RH,T, profile). Using AI/ML models, an interactive Climate App was developed dividing climate data into zones.

 

https://celcorr.dtu.dk/ccer