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Information × Registration Number 0221U103324, 0118U003537 , R & D reports Title Parameters optimization of low-resistance contact joints obtained by the reaction soldering. popup.stage_title Head Ustinov Anatolii I, Registration Date 18-02-2021 Organization Department of Targeted Training of the National Technical University of Ukraine Igor Sikorsky Kyiv Polytechnic Institute at the National Academy of Sciences of Ukraine popup.description2 Object of the research – various phenomena that accompany the joining of components for electronic devices, and factors that affect quality of the obtained joints. Purpose of the work – to determine the optimal parameters for obtaining contact joints with low resistance using method of reaction soldering, which provides local heating of the joint zone due to the heat from exothermic reaction initiated in the multilayer foil. Research methods - studies were performed using scanning electron microscopy with local analysis of chemical composition, measurement of initiation temperature and reaction front speed of self-propagating high-temperature synthesis (SHS), measurement of volt-ampere and lumen-ampere characteristics (VAC and LAC) of the LEDs and passive thermography method for quality control of the joints obtained. Based on the results of studies of the interrelationship between the microstructure of multilayer foils with an additional layer of solder, and the propagation parameters of the SHS reaction front, the optimal characteristics of multilayer foil required to obtain the joints with quality confirmed by its photometric and spectral parameters, were determined. Product Description popup.authors popup.nrat_date 2021-02-18 Close