A research on sintering process of conductive silver paste in low temperature used for silk-screen printing

Conductive silver paste used for silk-screen printing was prepared with silver nanoparticies as conductive phase, with the mixture of ethyl cellulose, the Span-80, terpineol and other substances as organic vehicle. With different sintering process, the sintering temperature and sintering time on conductive properties of Ag paste were discussed by observing the morphology of the sintered Ag paste with SEM and measuring the resistivity with the four-probe meter. The results show that conductive Ag paste with good conductive property can be obtained via sintering at 350 degrees C for 40 min.