Resistance material
AssigneeU.S. Philips Corporation
InventorsAlexander H. Boonstra, Cornelis A. H. A. Mutsaers
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Abstract
A resistance material comprising a mixture of a permanent binder, a temporary binder and a bismuth-strontium rhodate having a composition defined by the formula Bi.sub.x Sr.sub.1-x Rh.sub.2.5 O.sub.5-5.5 wherein 1/2>x>O as a resistance determining component. This component has a linear positive temperature coefficient of resistance (TCR). A resistor having a very low TCR may be made using a mixture of this resistance-determining material with a resistance-determining component having a negative TCR. The resistor is produced by firing this resistance material on a substrate.
Claims9
A resistance material comprising a bismuth-strontium rhodate compound having a composition defined by the formula Bi.sub.x Sr.sub.1-x Rh.sub.2.5 O.sub.5-5.5, wherein x is between 0 and 1/2.
A resistance material comprising a mixture of a permanent binder, a temporary binder and a resistance-determining component, said resistance-determining component comprising a bismuth-strontium rhodate having a composition defined by the formula Bi.sub.x Sr.sub.1-x Rh.sub.2.5 O.sub.5-5.5, wherein x is between 0 and 1/2.
Dependencies are inferred from the claim text.