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Finger biometric sensor including laterally adjacent piezoelectric transducer layer and associated methods

  • US 9,092,653 B2
  • Filed: 12/17/2013
  • Issued: 07/28/2015
  • Est. Priority Date: 08/07/2009
  • Status: Active Grant
First Claim
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1. A finger biometric sensor comprising:

  • a finger biometric sensing layer capable of generating signals related to at least one finger biometric characteristic;

    a piezoelectric transducer layer laterally adjacent said finger biometric sensing layer; and

    a plurality of electrically conductive layers coupled to said piezoelectric transducer layer to define transducer electrodes, at least one of said electrically conductive layers comprising a drive electrode capable of cooperating with said finger biometric sensing layer and coupling a radio frequency (RF) signal with a finger.

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