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Thin electronic chip card and method of making same

  • US 7,073,723 B2
  • Filed: 01/28/2004
  • Issued: 07/11/2006
  • Est. Priority Date: 01/31/2003
  • Status: Active Grant
First Claim
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1. A thin electronic chip card comprising:

  • an IC chip in a core film;

    a galvanic element as an energy store, which has at least one lithium-intercalating electrode and a thin, flexible housing comprising two metal foils, which bear directly against the electrodes and are connected to each other in a sealed manner with an adhesive or sealing layer, arranged in a recess in the core film;

    an elastic stress-compensating adhesive layer which adheres to metals and plastics coated over both sides of the core film and the element; and

    an overlay plastic film applied to each of the adhesive layers to firmly bond the core film and the element.

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