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US 11,686,704 B2Granted
Biosensor
AssigneeTaiwan Semiconductor Manufacturing Company, Ltd.
InventorsYu-Jie Huang, Jui-Cheng Huang, Yi-Hsing Hsiao
Life of this patent
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Abstract
A biosensor system includes an array of biosensors with a plurality of electrodes situated proximate the biosensor. A controller is configured to selectively energize the plurality of electrodes to generate a DEP force to selectively position a test sample relative to the array of biosensors.
Claims20
A biosensor system, comprising:
- an array of biosensors;
- a plurality of electrodes, wherein the plurality of electrodes comprises:
- a first group of electrodes comprising first, second, third and fourth electrodes positioned on a common plane on respective first, second, third and fourth sides of the array of biosensors,
- a second group of electrodes comprising fifth, sixth, seventh and eighth electrodes positioned on the common plane on the respective first, second, third and fourth sides of the array of biosensors, wherein the first group of electrodes is positioned outside the second group of electrodes,
- a reference electrode positioned above the first, second, third, fourth, fifth, sixth, seventh and eighth electrodes, and the array of biosensors, and
- a controller electrically connected to the plurality of electrodes, wherein the controller is configured to selectively energize the plurality of electrodes to generate a dielectrophoresis (DEP) force to selectively position a test sample relative to the array of biosensors;
- and
- wherein selectively positioning the test sample comprises rotating the test sample to a selected region for sensing.
5 more elements
A biosensor system, comprising:
- an array of biosensors;
- a plurality of electrodes, wherein the plurality of electrodes comprises:
- a first group of electrodes comprising first, second, third and fourth electrodes positioned on a common plane on respective first, second, third and fourth sides of the array of biosensors,
- a second group of electrodes comprising fifth, sixth, seventh and eighth electrodes positioned on the common plane on the respective first, second, third and fourth sides of the array of biosensors, wherein the first group of electrodes is positioned outside the second group of electrodes,
- a reference electrode positioned above the first, second, third, fourth, fifth, sixth, seventh and eighth electrodes, and the array of biosensors, and
- a controller configured to apply a first AC signal having a first predetermined frequency to the reference electrode to establish a positive DEP to trap a test sample on the array of biosensors, and to apply a second AC signal having a second predetermined frequency to the reference electrode to establish a negative DEP to separate the test sample from the array of biosensors;
- and
- wherein the controller is further configured to rotate the test sample to a selected region for sensing.
5 more elements
A biosensor system, comprising:
- an array of biosensors;
- a plurality of electrodes, wherein the plurality of electrodes comprises:
- a first group of electrodes comprising first, second, third and fourth electrodes positioned on a common plane on respective first, second, third and fourth sides of the array of biosensors,
- a second group of electrodes comprising fifth, sixth, seventh and eighth electrodes positioned on the common plane on the respective first, second, third and fourth sides of the array of biosensors, wherein the first group of electrodes is positioned outside the second group of electrodes,
- a reference electrode positioned above the first, second, third, fourth, fifth, sixth, seventh and eighth electrodes, and the array of biosensors, and
- a controller configured to apply an AC signal to the plurality of electrodes to establish a DEP force to rotate a test sample about a first axis.
3 more elements
Dependencies are inferred from the claim text.