Patent ID: 8790550

Claim:
A thick film paste composition comprising: (a) 65-85 wt % Ag; (b) 1-8 wt % Pb-free bismuth-tellurium-oxide consisting of 22-42 wt % Bi 2 O 3 , 58-78 wt % TeO 2 , 0.1-7 wt % Li 2 O and 0.1-4 wt % TiO 2 , wherein the wt % of Bi 2 O 3 , TeO 2 , Li 2 O and TiO 2 are based on the total weight of said bismuth-tellurium oxide; and (c) an organic medium; wherein said Ag, and said bismuth-tellurium-oxide are dispersed in said organic medium and wherein said wt % of said Ag and said bismuth-tellurium-oxide are based on the total weight of said paste composition.