Patent ID: 7790065

Claim:
A structure comprising: (i) 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 frits 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) Mg, wherein said Mg 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 are all dispersed in said organic medium; (ii) one or more substrates; and (iii) one or more insulating films, wherein, upon firing, the organic medium is removed and the glass frit and silver powder are sintered, and wherein the structure is a semiconductor device.