| abstract |
An epoxy silver paste that uses a cationic curing agent can achieve low-temperature fast curing properties according to the cationic curing agent. A thermosetting silver paste containing silver powder, an epoxy compound, a film-forming resin and a cationic curing agent uses a silver powder having a fatty acid concentration of 50 ppm or less. Fatty acids are lauric acid, myristic acid, palmitic acid, stearic acid and oleic acid. Silver powder is mix | blended in the ratio of 600-850 mass parts with respect to a total of 100 mass parts of an epoxy compound and film-forming resin. [Selection figure] None |