Patent ID: 8992750
Filing Date: 2015-03-31
Classification: G01N

Abstract:
1. A method, comprising: forming electrode patterns on a substrate defining first and second columns of the electrode patterns oriented in a head-to-head manner; depositing a reagent material on the substrate that at least partially covers electrode patterns of each of the first and second columns; laminating a first spacer layer on top of the substrate and partially covering the first column; laminating a second spacer layer on top of the substrate and partially covering the second column, wherein the first and second spacer layers are spaced apart and define a gap therebetween exposing the portions of the electrode patterns covered by the reagent material; laminating a cover layer on top of the first and second spacer layers and spanning the gap; cutting the substrate and the cover layer at an angle at a location along the gap between the first and the second columns of the electrode patterns to form a first cantilever overhang portion of the cover layer, the first cantilever overhang portion of the cover layer spanning between a front edge of the cut cover layer and a front edge of the first spacer layer, and to form a second cantilever overhang portion of the cover layer, the second cantilever overhang portion of the cover layer spanning between a front edge of the cut cover layer and a front edge of the second spacer layer, wherein the first cantilever overhang portion of the cover layer has a length greater than the second cantilever overhang portion of the cover layer; cutting the substrate and the cover layer at a location between individual electrode patterns in the first and second columns of the electrode patterns to create a plurality of individual test strips; and wherein a capillary chamber is defined between the substrate and the cover layer, and between the first and second spacer layers.