Well structures for biosensor devices
AssigneeAnalog Devices International Unlimited Company
InventorsChristophe Antoine, Youri Victorovitch Ponomarev, Julie Byard
Life of this patent
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Abstract
A biosensor structure may include a well structure comprising a first well and a second well, wherein a geometry of the well structure impacts where a solution dispensed into the well structure is located. A biosensor structure may include an electrode configured to sense an analyte in the solution, the electrode disposed at a bottom of the well structure. A biosensor structure may include a membrane positioned on the electrode and on at least part of a bottom surface of the well structure.
Claims13
A biosensor structure comprising:
- a well structure comprising a first well and a second well, wherein a geometry of the well structure impacts where a solution dispensed into the well structure is located, wherein the well structure comprises a surface including at least one of a nanostructure or a microstructure thereon to decrease adhesion of the solution, wherein the first well is disposed within the second well such that the first well and the second well extend to different depths relative to a surface of the substrate, wherein the second well has a greater diameter than the first well, and wherein the first well and the second well each comprise a respective tapered sidewall;
- an electrode configured to sense an analyte in the solution, the electrode disposed at a bottom of the well structure;
- and
- a membrane positioned on the electrode and on at least part of a bottom surface of the well structure.
A biosensor structure comprising:
- a well structure comprising a first well and a second well, wherein the first well and the second well are stepped concentric wells, wherein the well structure comprises a surface including at least one of a nanostructure or a microstructure thereon to decrease adhesion of the solution, wherein the first well is disposed within the second well such that the first well and the second well extend to different depths relative to a surface of the substrate, wherein the second well has a greater diameter than the first well, and wherein the first well and the second well each comprise a respective tapered sidewall;
- an electrode configured to sense an analyte in a solution in the well structure;
- and
- a membrane positioned on the electrode.
A biosensor structure comprising:
- a well structure comprising a first well, a second well, and a pillar disposed between the first well and the second well, wherein the well structure comprises a surface including at least one of a nanostructure or a microstructure thereon to decrease adhesion of the solution, wherein the first well is disposed within the second well such that the first well and the second well extend to different depths relative to a surface of the substrate, wherein the second well has a greater diameter than the first well, and wherein the first well and the second well each comprise a respective tapered sidewall;
- an electrode configured to sense an analyte in a solution in the well structure;
- and
- a membrane positioned on the electrode,
- wherein the first well and the second well are concentric, and wherein the second well surrounds the first well in plan view.
Dependencies are inferred from the claim text.