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Security paper and articles comprising such paper

A chip and code technology, applied in the field of circulation notes, can solve problems such as cost disputes

Inactive Publication Date: 2007-06-20
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Cost debate is an issue for integrating more than one integrated circuit within a single negotiable note, as described in prior patents

Method used

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  • Security paper and articles comprising such paper

Examples

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Embodiment Construction

[0042] The drawings are not drawn to scale and like numerals indicate like parts.

[0043] Figure 1 shows a circulation note 10 schematically. It consists of a fibrous material known from the prior art as security paper, on which a denomination 5 is printed. Furthermore, the currency note 10 includes a first integrated circuit 1 with an antenna 2 . Integrated circuit 1 is located on line 11 . The integrated circuit 1 is attached to the wire 11 with a suitable glue. The currency note 10 also includes a second integrated circuit 2 with an antenna 4 .

[0044] The integrated circuits 1, 3 of the invention are fabricated on a silicon substrate, followed by an interconnect structure, a polymer layer, eg polyimide, thus providing a temporary carrier. The antenna is an inductor which is defined as part of the interconnection, but in principle in an area surrounding the integrated circuit. Thereafter, the silicon substrate is largely removed, so that the integrated circuit is fle...

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PUM

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Abstract

The currency note (10) is provided with a first and a second integrated circuit (1,3), that each have,: in antenna (2,4). The antennas (2,4) preferably operate at different frequencies. Each of he integrated circuits (2,4) comprises a memory in which a chip code and a combination code are stored. The combination code has been programmed only after integration of the into grated circuits (2,4) with the currency note (10), and allows the recognition of the first integrated circuit 1 which is one part of the currency note (10) identical with the second integrated circuit 3 when radio reading a plurality of currency note (10).

Description

technical field [0001] The present invention relates to a circulation note, each comprising a first chip and a second chip, wherein each chip comprises a memory for storing information. [0002] The invention also relates to a method for identifying such currency notes. Background technique [0003] An article of this type is known from EP905657A. The item is a negotiable instrument, such as a banknote, check, stock or bond. To enhance the identification and authentication of the currency notes, this prior patent proposes incorporating one or possibly more chips - also called integrated circuits - in the currency notes. However, integrating more than one integrated circuit per banknote is considered less advantageous due to the difficulty of establishing a large number of electrical connections within a banknote. [0004] It is known that the banknote's integrated circuit can have a non-volatile memory which can be programmed only once, that is, by an irreversible physica...

Claims

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Application Information

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IPC IPC(8): G07D7/00
CPCG07D7/0093G07D7/01
Inventor M·D-J·诺伦
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
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