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Chemical Sensor

IP.com Disclosure Number: IPCOM000227907D
Publication Date: 2013-May-29

Publishing Venue

The IP.com Prior Art Database

Abstract

In a method for manufacturing a chemical sensor with multiple sensor cells, a substrate is provided and an expansion inhibitor is applied to the substrate for preventing a sensitive material to be applied to an area on the substrate for building a sensitive film of a sensor cell to expand from said area. The sensitive material is provided and the sensitive film is built by contactless dispensing the sensitive material to said area.

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This is the abbreviated version, containing approximately 8% of the total text.

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CHEMICAL SENSOR

          In a method for manufacturing a chemical sensor with multiple sensor cells, a substrate is provided and an expansion inhibitor is applied to the substrate for preventing a sensitive material to be applied to an area on the substrate for building a sensitive film of a sensor cell to expand from said area. The sensitive material is provided and the sensitive film is built by contactless dispensing the sensitive material to said area.

BACKGROUND OF THE INVENTION

          The invention relates to a chemical sensor and to a method for manufacturing a chemical sensor.

          A chemical sensor performs a detection of chemical substances or compounds which are also denoted as analytes contained in a gas, or possibly in a fluid, supplied to the chemical sensor.

          In case multiple different analytes shall be detected by a chemical sensor, the chemical sensor may comprise multiple sensor cells with each sensor cell being designed for detecting one or more of the subject analytes.

ABSTRACT OF THE DISCLOSURE


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BRIEF SUMMARY OF THE INVENTION

          According to a first aspect of the present invention, a method for manufacturing a chemical sensor with multiple sensor cells is provided. According to this method, a substrate is provided and an expansion inhibitor is applied to the substrate for preventing a sensitive material to be applied to an area on the substrate for building a sensitive film of a sensor cell to expand from said area. The sensitive material is provided and the sensitive film is built by contactless dispensing the sensitive material to said area.

          Preferred embodiments of the method may contain one or more of the following features:

          - the sensitive material is dispensed in a liquid phase to said area;

          - applying the expansion inhibitor includes applying a barrier at edges of said area for preventing the sensitive material to be applied to said area to escape from said area;

          - the barrier includes a rim protruding from the substrate around said area;

          - the barrier includes a recess in the substrate around said area;

          - applying the expansion inhibitor includes treating a surface of the substrate for providing a first surface energy in said area, and for providing a second surface energy outside said area, which second surface energy is less than the first surface energy, for making said area a preferred zone for the sensitive material to wet to;

          - the surface of the substrate provides the first surface energy, and outside said area the surface of the


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substrate is covered by a coating providing the second surface energy;

          - the surface of the substrate provides the second surface energy, and in said area the surface of the substrate is covered by a coating providing the first surface energy;

          - applying the expansion inhibitor includes applying an adhesion film to said area for making the sensitive material to be applied to said area adhere to the adhesion film;

          - applying expansion inhibitors to the substrate to p...