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Biometric image sensing

  • US 9,659,208 B2
  • Filed: 11/19/2015
  • Issued: 05/23/2017
  • Est. Priority Date: 01/15/2010
  • Status: Active Grant
First Claim
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1. A biometric sensor, comprising:

  • a plurality of drive lines;

    a plurality of pickup lines oriented transversely to the drive lines and separated from the drive lines by a substrate;

    an integrated circuit comprising drive electronics and detection electronics, wherein the substrate is disposed between the pickup lines and the integrated circuit, wherein the drive electronics comprise switches configured to multiplex the drive lines to a signal source, and wherein the detection electronics comprise one or more differential amplifiers and switches configured to multiplex the pickup lines to the one or more differential amplifiers; and

    vias extending through the substrate for providing an electrical connection between the pickup lines and the integrated circuit.

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