Brazing cream, method for preparing the brazing cream and brazing method using the method

摘要

The invention relates to a brazing cream for containing solder metal alloy particles with melting temperature less than or equal to 260 ℃ in a vehicle. Moreover, according to the implemented metal formate, the decomposition temperature of the metal formate is lower than or equal to the decomposition temperature of the melting temperature of the welding metal alloy increased by 30 ° C, and the welding cream can be used at the reduced welding temperature.Or the solder formed by it has the enhanced pull-out stress under the welding temperature. In particular, this solder paste is very useful for making double-sided electronic cards.