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Laser-ablating mechanical and security features for security documents

  • US 9,053,404 B2
  • Filed: 07/03/2013
  • Issued: 06/09/2015
  • Est. Priority Date: 11/09/2009
  • Status: Expired due to Fees
First Claim
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1. An inlay substrate for a secure document having a recess extending into the inlay substrate from a first surface thereof for receiving a chip module therein, and for receiving an antenna wire disposed in the inlay substrate and connected with the chip module, the inlay substrate comprising at least one of the following features incorporated into the inlay substrate:

  • trenches disposed in the inlay substrate, near the recess, for de-stressing the inlay substrate layer during hot lamination;

    perforations disposed in the inlay substrate, around the recess, for making a recess area of the substrate frangible;

    notches disposed in the inlay substrate, in side edges of the recess, and pins inserted into the notches for resiliently holding the chip module in place; and

    slots disposed in the inlay substrate, around at least one side edge of the recess for resiliently holding the chip module in place.

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