Electrode for electrochemical sensors
First Claim
1. An article comprisingan electrochemical sensor comprisinga substrate,a conductive layer comprising at least one working electrode having a main body section, a connective neck section, and a terminal neck section, wherein the width of at least a portion of each electrode neck section is less than the width of the narrowest portion of the main body section, andan insulative layer over a portion of the conductive layer such that at least a portion of each electrode neck section is covered by the insulative layer and a portion is not covered by the insulative layer.
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Accused Products
Abstract
Provided are electrochemical circuits with electrodes having a main body section and at least one neck section wherein the width of at least a portion of the neck section is less than the width of the narrowest portion of the main body section, and an insulative layer over a portion of the conductive layer such that at least a portion of an electrode neck section is not covered by the insulative layer. Also provided are methods of making the electrochemical circuits.
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Citations
16 Claims
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1. An article comprising
an electrochemical sensor comprising a substrate, a conductive layer comprising at least one working electrode having a main body section, a connective neck section, and a terminal neck section, wherein the width of at least a portion of each electrode neck section is less than the width of the narrowest portion of the main body section, and an insulative layer over a portion of the conductive layer such that at least a portion of each electrode neck section is covered by the insulative layer and a portion is not covered by the insulative layer.
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16. A method for minimizing variations in the surface area of an electrode in an electrochemical sensor comprising
placing on a substrate a pattern of conductive material to form at least one working electrode having a main body section, a connective neck section, and a terminal neck section, wherein the width of at least a portion of each electrode neck section is less than the width of the narrowest portion of the main body section, and placing over the conductive material a pattern of insulative material having an opening wherein at least a portion of each electrode neck section is exposed through the opening and a portion is covered by the insulative material, each electrode neck section being of sufficient length that the placement accuracy of the insulative material with respect to the main electrode body can vary without the variance causing the insulative material to cover all of or none of each electrode neck.
Specification