| abstract |
The present invention provides a flux for improving the wettability of solder, and a solder paste using the flux. The flux contains 0.5 wt % or more and 20.0 wt % or less of (2-carboxyalkyl) isocyanurate adduct, 5.0 wt % or more and 45.0 wt % or less of rosin, and further contains a solvent. (2-Carboxyalkyl)isocyanurate adducts are mono(2-carboxyalkyl)isocyanurate adducts, bis(2-carboxyalkyl)isocyanurate adducts and Any one or a combination of two or more of the tris(2-carboxyalkyl)isocyanurate adducts. |