Effects of Na-Ca System Glass Powder on Properties of Silver Paste

摘要

The content and particle size of the Na - Ca System glass powder have significant effects on the properties of the silver paste. The effects of the sintering temperature, holding time, glass powder content and glass powder size on the adhesion and square resistance of the silver film were studied. The conductive network of the silver film was observed by SEM. The research results show that the silver paste with 6 wt.% content of the 2.47μm glass powder sintered at 680°C for 7 minutes have good properties. The adhesion strength and square resistance of the silver film are respectively 2.5 N/mm~2 and 14 mΩ/□.