| 摘要 |
A soldering flux includes rosin, a thixotropic agent, an activator, an antioxidant and a solvent, in which rosin ester is included as the rosin, a content of the rosin ester is set in a range of 20 mass% to 50 mass% with respect to the entire flux, and one or two or more selected from polyamides, cured castor oil, derivatives thereof and hydrocarbon-based waxes are included as the thixotropic agent. |
