Patent ID: 7998371

Claim:
A thick film composition comprising: a) an electrically conductive material selected from the group consisting of silver metal, silver oxide, silver salts and mixtures thereof; b) glass frit comprising 0.1-8 wt % SiO 2 , 8-25 wt % B 2 O 3 , 0-15 wt % BiF 3 and 28-85 wt % Bi 2 O 3 , based on the wt % of the total glass composition; c) a Mg-containing additive, wherein the Mg-containing additive-is selected from the group consisting of metal oxides of Mg, any compounds that can generate metal oxides of Mg upon firing and mixtures thereof, wherein said Mg-containing additive is 0.1 wt % to 10 wt % of the total composition; and d) an organic medium, wherein said electrically conductive material, said glass frit and said Mg-containing additive are all dispersed in said organic medium.