Termination for electrical resistor and method of making same
AssigneeTRW Inc.
InventorsKenneth M. Merz, Howard E. Shapiro
Life of this patent
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Abstract
A termination material for a vitreous enamel electrical resistor which includes a mixture of a glass frit and particles of nickel and iron. The termination material is applied to a substrate and fired to melt the glass frit, and then cooled to form a layer of the glass with particles of an alloy of nickel and iron embedded therein. The termination material may be applied to the substrate either before or after the resistance material is applied to the substrate.
Claims38
A conductive termination material for electrical components comprising a mixture of fine metal particles of an alloy of nickel and iron and a glass frit.
An electrical termination device for a resistor comprising a substrate, a termination on the substrate, said termination comprising a layer of glass having particles of an alloy of nickel and iron dispersed throughout the glass layer.
A method of making an electrical termination device for a resistor wherein a vitreous enamel termination composition is applied to a substrate comprising the steps of
- preparing a vitreous enamel termination composition comprising a glass frit and finely divided conductive particles of nickel and iron,
- applying a layer of the composition to an insulating substrate,
- firing the coated substrate in a non oxidizing atmosphere sufficient to form an adherent vitreous composite, and
- cooling the coated substrate to form a termination thereon having a glass matrix with conductive particles dispersed therein.
An electrical termination device for a resistor made by
- preparing a vitreous enamel termination composition comprising a glass frit and finely divided conductive particles of nickel and iron,
- applying a layer of the composition to an insulating substrate.
- firing the coated substrate in a non oxidizing atmosphere sufficient to form an adherent vitreous composite, and
- cooling the coated substrate to form a termination thereon having a glass matrix with conductive particles dispersed therein.
Dependencies are inferred from the claim text.