Shoei Chemical Inc.

Hayato Tateno

Hiroshi Mashima

Junichi Ikuno

A conductive paste comprising a conductive powder, a glass frit substantially free of lead, and an organic vehicle, wherein the glass frit contains 25 to 50 mol % B in terms of BO, 25 to 50 mol % Si in terms of SiO, 7 to 23 mol % Al in terms of AlO, 2 to 15 mol % Mg in terms of MgO, 2 to 5 mol % Ba in terms of BaO, one or two selected from the group consisting of 3 to 18 mol % Zn in terms of ZnO, and 3 to 8 mol % Ti in terms of TiO, based on the total number of moles in terms of the above oxides. According to the present invention, it is possible to provide a lead-free conductive paste having excellent resistance to dissolution in solder and acid resistance as well as being capable of forming fired films having excellent adherence and adhesion to a substrate.

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Tosu, Japan

Hayato Tateno