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Direct write sensors

  • US 10,291,199 B2
  • Filed: 08/25/2016
  • Issued: 05/14/2019
  • Est. Priority Date: 09/04/2015
  • Status: Active Grant
First Claim
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1. An acoustic wave sensor, comprising:

  • a piezoelectric substrate layer;

    a sensor layer joined to the substrate layer and comprising a first interdigitated acoustic wave transducer and at least one other feature selected from the group consisting of a sensing film, an interdigitated acoustic wave transducer, and a Bragg reflector;

    wherein all of the interdigitated acoustic wave transducers and Bragg reflector are aerosol jet printed;

    an antenna layer and an insulation layer interposed between the antenna layer and the sensor layer, wherein the insulation layer and antenna layer are aerosol jet printed; and

    ,wherein at least one of the sensor layer and antenna layer comprise a dielectric matrix material.

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