Juuso Rautio, Tommi J. Kärkkäinen, Janne Jäppinen, Katriina Korpinen, Markku Niemelä, Pertti Silventoinen, Joonas A. R. Leppänen, Jonny M. Ingman
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Reliability of Power Modules in Corrosive Environments: Effect of Heating on Dendritic Corrosion Growth in the Isolation Trenches
Environments with high humidity and corrosive gases have been shown to cause dendritic corrosion growth in isolation trenches of power semiconductor modules. In time, the corrosion products can grow long enough to bridge the isolation trenches and cause failure of the component, and the device the component is part of. In this paper, applied heating was shown to effectively inhibit dendritic corrosion growth by reducing the effective relative humidity and thereby the thickness of the adsorbed water layer on the ceramic substrate surface. The findings can be applied to enhance the reliability of power electronic devices e.g. frequency converters, including those with standard components without special corrosion-resistant packaging.
期刊介绍：
IET Power Electronics aims to attract original research papers, short communications, review articles and power electronics related educational studies. The scope covers applications and technologies in the field of power electronics with special focus on cost-effective, efficient, power dense, environmental friendly and robust solutions, which includes:
Applications:
Electric drives/generators, renewable energy, industrial and consumable applications (including lighting, welding, heating, sub-sea applications, drilling and others), medical and military apparatus, utility applications, transport and space application, energy harvesting, telecommunications, energy storage management systems, home appliances.
Technologies:
Circuits: all type of converter topologies for low and high power applications including but not limited to: inverter, rectifier, dc/dc converter, power supplies, UPS, ac/ac converter, resonant converter, high frequency converter, hybrid converter, multilevel converter, power factor correction circuits and other advanced topologies.
Components and Materials: switching devices and their control, inductors, sensors, transformers, capacitors, resistors, thermal management, filters, fuses and protection elements and other novel low-cost efficient components/materials.
Control: techniques for controlling, analysing, modelling and/or simulation of power electronics circuits and complete power electronics systems.
Design/Manufacturing/Testing: new multi-domain modelling, assembling and packaging technologies, advanced testing techniques.
Environmental Impact: Electromagnetic Interference (EMI) reduction techniques, Electromagnetic Compatibility (EMC), limiting acoustic noise and vibration, recycling techniques, use of non-rare material.
Education: teaching methods, programme and course design, use of technology in power electronics teaching, virtual laboratory and e-learning and fields within the scope of interest.
Special Issues. Current Call for papers:
Harmonic Mitigation Techniques and Grid Robustness in Power Electronic-Based Power Systems - https://digital-library.theiet.org/files/IET_PEL_CFP_HMTGRPEPS.pdf
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