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Abstract
Research has been carried out to investigate new soldering materials and technologies for the medical field. The two soldering techniques, which have been considered, are diffusion and active soldering. In order to satisfy the most important medical requirement, the biocompatibility, gold based solders and soldering systems have been studied. According to the Directive 2002/95/EC of the European Parliament, lead as well as cadmium, hexavalent chromium and mercury have not been alloyed in the developed solders. The examined soldering systems enable joining similar and dissimilar materials, which is essential in the field of hybrid microsystems engineering. Furthermore, the achieved low process temperatures reduce the incidence of damage and thermally induced stresses in the components being joined.