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US 5,672,256 AGranted
Multi-electrode biosensor and system and method for manufacturing same
AssigneeLG Semicon Co., Ltd.
InventorHee-Jin Yee
Life of this patent
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Abstract
A multi-electrode biosensor for sensing a material present in a sample includes a substrate, a plurality of working electrodes formed on the substrate, a counter electrode formed on the substrate, and a reference electrode formed on the substrate.
Claims15
A multi-electrode biosensor comprising:
- a substrate;
- a plurality of working electrodes formed on the substrate, the plurality of working electrodes including at least two active working electrodes and an inert working electrode, wherein the active working electrode includes a bioactive material and the inert working electrode is bioinactive;
- a counter electrode formed on the substrate;
- and
- a reference electrode formed on the substrate.
2 more elements
A multi-electrode biosensor system comprising:
- a multi-electrode biosensor including;
- a substrate,
- a plurality of working electrodes formed on the substrate, the plurality of working electrodes including at least two active working electrodes and an inert working electrode, wherein the active working electrode includes a bioactive material and the inert working electrode is bioinactive,
- a counter electrode formed on the substrate, and
- a reference electrode formed on the substrate;
- and
- a processing circuit including an average summing portion for averaging signals from selected ones of the plurality of working electrodes.
4 more elements
A method for manufacturing a multi-electrode biosensor on a substrate comprising the steps of:
- forming a plurality of metal conducting paths on the substrate;
- forming a first base carbon electrode on a first selected one of the plurality of metal conducting paths to provide a counter electrode;
- forming at least second, third, and fourth base carbon electrodes on respective second, third, and fourth selected ones of the plurality of metal conducting paths;
- forming a reference electrode from a fifth selected one of the plurality of metal conducting paths;
- providing a bioactive material on at least the second and third base carbon electrodes to form active working electrodes;
- and
- providing a bioinactive material on the fourth base carbon electrode to form an inert working electrode.
4 more elements
Dependencies are inferred from the claim text.