Method for manufacturing a biological fluid sensor
AssigneeCoreSyte, Inc.
InventorsAdam Pizer, Dalton Pont, John V. Chiochetti
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Abstract
The present invention presents a method of fabrication for a physiological sensor with electronic, electrochemical, and chemical components. The fabrication method comprises steps for manufacturing an apparatus comprising at least one electrochemical sensor, a microcontroller, and a transceiver. The fabrication process includes the steps of substrate fabrication, circuit fabrication, pick and place, reflow soldering, electrode fabrication, membrane fabrication, sealing and curing, layer bonding, and dressing. The physiological sensor is operable to analyze biological fluids such as sweat.
Claims14
A method of fabrication for a biological fluid sensor for analyzing at least one analyte in human biological fluid, said biological fluid sensor comprising electronic components, electrochemical components, and chemical components, comprising:
- fabricating at least one circuit on at least one substrate;
- placing the electronic components onto the at least one circuit, wherein the electronic components include at least one microcontroller and at least one transceiver;
- fabricating at least two electrodes, wherein the at least two electrodes are comprised of at least one active electrode and at least one reference electrode;
- sealing the at least one active electrode to create an electronic layer;
- and
- integrating the electronic layer with a top cover layer, a microfluidic management layer, and a double-sided adhesive layer;
- wherein the step of fabricating the at least two electrodes further comprises:
- fabricating a metallization paste;
- constructing the at least one reference electrode by applying the metallization paste on top of at least one first trace metal of the at least one circuit and annealing;
- and
- constructing the at least one active electrode by applying the metallization paste on top of at least one second trace metal of the at least one circuit and annealing;
- forming a conductive trace in a first ring around the at least one active electrode, wherein the conductive trace in the first ring around the at least one active electrode does not contact the at least one active electrode;
- forming a second ring around the at least one active electrode, wherein the second ring around the at least one active electrode is inside the first ring around the at least one active electrode, and wherein the first ring around the at least one active electrode does not contact the second ring around the at least one active electrode;
- and
- applying an ionophore coating on the at least one active electrode such that the ionophore coating completely covers the at least one active electrode and is contained within the second ring.
Dependencies are inferred from the claim text.