| 摘要 |
<p>To provide a thick film resistor involving small variations in resistance and TCR during the firing step and a low thermal coefficient of expansion. A thick film resistor composition containing 5-30 wt.% of a ruthenium pyrochlore oxide and 10-90 wt.% of a glass binder, wherein (1) the ruthenium pyrochlore oxide is PbRuO3, (2) the glass binder is a glass which contains a first glass containing 61-85 wt.% of PbO, 10-36 % if SiO2 and 0-2 wt.% if B2O3, the total content of the PbO, SiO2 and B2O3 accounting for 95 wt.% or more of the first glass, and in which 2-20 wt.% of B2O3 is contained in the entire glass binder, and (3) the first glass accounts for 50-30 wt.% of the thick film resistor composition, and the weight ratio of the ruthenium pyrochlore oxide to the first glass is 5:30-60:40.</p> |
