Patent ID: 8133413

Claim:
A thick-film resistor paste composition including a resistor composition dispersed in an organic vehicle, said resistor composition comprising: (a) a conductive composition comprising ruthenium oxide and ruthenium pyrochlore oxide; and (b) at least a first and a second glass frit, wherein said first glass frit comprises copper, wherein said first glass frit comprises: (i) 5-15 wt % B 2 O 3 , (ii) 40-55 wt % SiO 2 , (iii) 15-35 wt % of an oxide selected from the group consisting of BaO, CaO, ZnO, SrO, and combinations thereof; and wherein (iv) said copper is 2-8 wt % CuO, (v) Ta2O5 is 2-8 wt % and (vi) an oxide selected from the group consisting of Na 2 O, K 2 O, Li 2 O and combinations thereof is 1-8 wt %, and optionally including any of (vii) ZrO 2 0-6 wt % and (viii) 0-8 wt % Al 2 O 3 , based upon the weight of said first glass frit.