Patent ID: 6737732
Filing Date: 2004-05-18
Classification: G06K

Abstract:
A data carrier (1)which is constructed for contactless communication with a communication station, and which comprises a first carrier layer (2) and a second carrier layer (3), and which comprises an adhesive layer (15) located between the first carrier layer (2) and the second carrier layer (3) for holding the two carrier layers (2, 3) together, and which comprises an integrated circuit (11) lying in a given position between one of the two carrier layers (2, 3) and the adhesive layer (15), which integrated circuit (11) comprises circuit transmission means (12), wherein first transmission means (4) are connected to the first carrier layer (2), the first transmission means (4) bear at least substantially on the adhesive layer (15) and by means of the first transmission means (4) a contactless communication of the data carrier (1) with a communication station can be implemented, and wherein second transmission means (7) are connected to the first carrier layer (2), the second transmission means (7) are connected to the first transmission means (4) with electrical conduction and are in operational connection with the circuit transmission means (12) for communication purposes, the second transmission means (7) including a plurality of capacitor plates (8, 9) and the chip transmission means (12) including a plurality of capacitor plates (13, 14) that are in direct electrically conductive contact with the capacitor plates (8, 9) of the second transmission means (7), and wherein the final, mechanically stable retention of the integrated circuit (11) in its given position is realized by means of the adhesive layer (15) only.