Material characterization and quality assurance form an essential basis for the development, evaluation and optimization of modern joining technologies in microelectronic components and systems. Our focus lies particularly on the microstructure of the applied materials, as their properties significantly determine the electrical, thermal and mechanical performance, as well as the overall product reliability. The aim is to specifically detect microstructural changes – for example caused by thermal and mechanical stresses, ageing and diffusion processes, or corrosion – and to determine their influence on the function of materials and interconnects. The analysis of such changes provides important insights for the development of new materials, the optimization of manufacturing processes, and the investigation of physics-of-failure mechanisms.

To characterize materials and joints, we utilize modern methods such as metallographic preparation, optical microscopy, scanning electron microscopy (SEM), as well as EDX for analyzing chemical compositions and EBSD for visualizing crystalline structures. Combined with many years of experience, these methods enable comprehensive materials analysis and quality assessment of joining technologies at various scales, ranging from large solder joints, through flip-chip and diffusion contacts, all the way to hybrid bond connections. The evaluation of microstructure and interfacial properties is crucial for the performance and service life of electronic systems. The insights gained from such analysis support quality assurance, process optimization, and reliability assessment, and provide an important contribution to the development of future technologies for electronic packaging.