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RFID antenna modules and methods

  • US 8,870,080 B2
  • Filed: 02/01/2013
  • Issued: 10/28/2014
  • Est. Priority Date: 08/12/2010
  • Status: Active Grant
First Claim
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1. An antenna module (AM) for a smart card (SC) comprising:

  • a substrate (MT);

    a chip (CM) disposed on a surface of the substrate (MT) and flip-chip connected to pads on the surface of the substrate (MT); and

    an antenna (MA) disposed on the surface of the substrate (MT), and connected with the chip (CM);

    characterized by;

    a support structure (DS, WC) secured to the surface of the substrate (MT), serving as a winding core for the antenna (MA);

    wherein the support structure (DS, WC) comprises a tubular body portion (B) having two opposite open ends, one of which is secured to the surface of the substrate (MT), the other of which is a free end; and

    wherein the support structure serves as a dam for glob-top (GT) covering at least the chip (CM) within the support structure.

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