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AssigneeTDK Corporation
InventorsKatsuhiko Igarashi, Hirobumi Tanaka
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A thick film resistor includes glass containing a precious metal element and a conductive material dispersed in the glass. A method for manufacturing a thick film resistor includes the step of sintering a glass composition, a conductive material and resistor paste containing a precious metal element, with sintering conditions controlled, to melt the precious metal element in the glass. Another method for manufacturing a thick film resistor includes the step of sintering resistor paste containing a conductive material and a glass composition that contains a precious metal element. A glass composition includes 13 to 45 mol % of at least one member selected from the group consisting of CaO, SrO and BaO, 35 to 80 mol % of one or both of B2O3 and SiO2, 0 to 11 mol % of one or both of ZrO2 and Al2O3, 0 to 8 mol % of one or both of Ta2O5 and Nb2O5, 0 to 15 mol % of MnO and 0.1 to 10 mol % of a precious metal element. Thick film resistor paste contains at least the aforementioned glass composition and a conductive material and has the composition and material mixed with an organic vehicle.
A thick film resistor comprising glass containing a precious metal element and a conductive material dispersed in the glass.
A method for manufacturing a thick film resistor, comprising the step of sintering a glass composition, a conductive material and resistor paste containing a precious metal element, with sintering conditions controlled, to melt the precious metal element in the glass.
A method for manufacturing a thick film resistor, comprising the step of sintering resistor paste containing a conductive material and a glass composition that contains a precious metal element.
A glass composition for thick film resistor comprising 13 to 45 mol % of at least one member selected from the group consisting of CaO, SrO and BaO, 35 to 80 mol % of one or both of B2O3 and SiO2, 0 to 11 mol % of one or both of ZrO2 and Al2O3, 0 to 8 mol % of one or both of Ta2O5 and Nb2O5, 0 to 15 mol % of MnO and 0.1 to 10 mol % of a precious metal element.
Thick film resistor paste containing at least a glass composition and a conductive material and having the glass composition and conductive material mixed with an organic vehicle, wherein the glass composition comprises 13 to 45 mol % of at least one member selected from the group consisting of CaO, SrO and BaO, 35 to 80 mol % of one or both of B2O3 and SiO2, 0 to 11 mol % of one or both of ZrO2 and Al2O3, 0 to 8 mol % of one or both of Ta2O5 and Nb2O5, 0 to 15 mol % of MnO and 0.1 to 10 mol % of a precious metal element.
Dependencies are inferred from the claim text.