SURFACE ACOUSTIC WAVE SENSOR ASSEMBLIES
First Claim
1. A surface acoustic wave sensor assembly comprising:
- a surface acoustic wave sensor comprising a plurality of electrodes;
a circuit layer including an aperture and a plurality of electrical contacts; and
a Z-axis conductive layer to couple the electrical contacts to the electrodes.
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Accused Products
Abstract
The invention is directed to a surface acoustic wave sensor assembly that makes use of a Z-axis conductive layer, such as a Z-axis conductive elastomer, or the like. In particular, a Z-axis conductive elastomer couples a circuit layer to a surface acoustic wave (SAW) sensor in order to form a SAW sensor assembly. For example, a plurality of electrical contacts of the circuit layer can be coupled to a plurality of electrodes of the SAW sensor via the Z-axis conductive elastomer. The Z-axis conductive elastomer provides electrical coupling between the electrical contacts and the electrodes, and also forms a hermetic barrier between the circuit layer and the SAW sensor. In addition, elastic properties of the Z-axis conductive elastomer may reduce pressure exerted on the SAW sensor during use.
82 Citations
23 Claims
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1. A surface acoustic wave sensor assembly comprising:
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a surface acoustic wave sensor comprising a plurality of electrodes; a circuit layer including an aperture and a plurality of electrical contacts; and a Z-axis conductive layer to couple the electrical contacts to the electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A sensor cartridge comprising:
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a housing comprising a fluid path; and a surface acoustic wave sensor assembly comprising a surface acoustic wave sensor that comprises a plurality of electrodes, a circuit layer that comprises an aperture and a plurality of electrical contacts, and a Z-axis conductive layer to couple the electrical contacts to the electrodes, wherein the surface acoustic wave sensor is exposed to the fluid path via the aperture. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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- 19. A method of forming a surface acoustic wave assembly comprising electrically coupling a plurality of electrodes of a surface acoustic wave sensor to a plurality of electrical contacts of a circuit layer with a Z-axis conductive layer.
Specification