Effect of Hot Sintering Process on Electrical and Mechanical ComprehensiveProperties of Printed Flexible Silver Wire

The direct coriting printed flexible electronic silver wire was hot sintered. The effects of sintering temperatures (120,140,160,180, 200 ℃) and times (2,4,6,8,10 h) on conductivity, ductility and resistance to bending fatigue were studied with the self-made flexible electronic mechanics reliability test platform. The results show that with the increase of sintering temperature and time, the conductivity of the silver wire was improved first and gradually stabilized, the ductility was also improved, but the bending fatigue life was significantly reduced. The printed silver wire could obtain good conductivity when the sintering temperature was above 160 ℃ and the sintering time was more than 8 min.