| 摘要 |
PROBLEM TO BE SOLVED: To provide a soldering flux capable of making a heating droop suppression and a satisfactory sintering washability compatible at a reflow step and having a satisfactory printability and an irregular shape bump depression effect, and a solder paste using the same.SOLUTION: A soldering flux contains a rosin resin, a solvent, an activator, and a thixotropic agent, and is characterized in that the thixotropic agent contains cured castor oil and a dibenzylidene sorbitol compound.SELECTED DRAWING: Figure 1 |
