Sensor fabricating method
First Claim
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1. A method for fabricating an olfactory sensor on a substrate having a pair of electrodes, said method comprising:
- a) depositing at least one conducting material as a first layer onto said substrate having a pair of electrodes, the first layer being capable of sensing a chemical analyte that contacts the first layer;
b) depositing at least one non-conductive or insulating film that is capable of absorbing the chemical analyte that is provided thereon as a second layer, onto said first layer of conducting material, thereby fabricating said sensor; and
c) post-processing said second layer after depositing upon said first layer of conducting material, in order to burn-in the olfactory sensor,wherein said olfactory sensor is comprised of at least one sensor composition, andwherein the chemical analyte is absorbed within the second layer so as to make contact with the first layer; and
wherein the post-processing comprises;
exposing the second layer to either a non-polar substance or a polar substance,wherein the exposing step is performed in cycles over a predetermined time period.
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Abstract
The present invention provides methods for fabricating a sensor on a substrate having a pair of electrodes. The methods are especially amenable to broad variations amongst individual sensor on a single substrate. The intra-sensor variation within the array can be achieved in various fashions. The method provide intra-sensor variation using quantitative and qualitative differences in each sensor.
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Citations
24 Claims
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1. A method for fabricating an olfactory sensor on a substrate having a pair of electrodes, said method comprising:
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a) depositing at least one conducting material as a first layer onto said substrate having a pair of electrodes, the first layer being capable of sensing a chemical analyte that contacts the first layer; b) depositing at least one non-conductive or insulating film that is capable of absorbing the chemical analyte that is provided thereon as a second layer, onto said first layer of conducting material, thereby fabricating said sensor; and c) post-processing said second layer after depositing upon said first layer of conducting material, in order to burn-in the olfactory sensor, wherein said olfactory sensor is comprised of at least one sensor composition, and wherein the chemical analyte is absorbed within the second layer so as to make contact with the first layer; and wherein the post-processing comprises; exposing the second layer to either a non-polar substance or a polar substance, wherein the exposing step is performed in cycles over a predetermined time period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for fabricating an olfactory sensor on a substrate having a pair of electrodes, said method comprising:
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a) depositing a first layer of conducting material onto said substrate having a pair of electrodes to form a substrate having a conducting material disposed thereon, the first layer being capable of sensing a chemical analyte that contacts the first layer; b) drying said substrate having a conducting material disposed thereon to remove any solvent; c) depositing a second layer of non-conductive or insulating film that is capable of absorbing the chemical analyte that is provided thereon, onto said first layer of conducting material, to form a fabricated sensor; and d) post-processing said fabricated sensor to cure said second layer, wherein the chemical analyte is absorbed within the second layer so as to make contact with the first layer, wherein the post-processing comprises; exposing the second layer to either a non-polar substance or a polar substance, wherein the exposing step is performed in cycles over a predetermined time period. - View Dependent Claims (22, 23, 24)
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Specification