Method of producing a smart card module, a smart card module produced by the method, and a combination smart card containing the smart card module
First Claim
1. A method of producing a smart card module having a substrate with a first contact plane, a semiconductor chip, and a further connecting plane, the method which comprises:
- laminating a metal strip along a longitudinal direction onto a first side of a module substrate ribbon;
structuring the metal strip to form individual connecting sites of a further connecting plane and simultaneously structuring the module substrate ribbon by punching the module substrate ribbon for forming a cavity for receiving a semiconductor chip and openings for electrically conductive connections in the module substrate ribbon;
subsequently laminating a metal foil onto a second side of the module substrate ribbon, and structuring the metal foil to form a first contact plane electrically isolated from the further connecting plane;
mounting the semiconductor chip in the module substrate ribbon and contacting the chip with the first contact plane and the further connecting plane;
encasing the semiconductor chip with a plastic compound; and
singling an individual smart card module from the module substrate ribbon.
1 Assignment
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Accused Products
Abstract
The smart card module has a supporting plate which has a first contact plane and a semiconductor chip and electrically conductive connections between the semiconductor chip and the first contact plane. Apart from the first contact plane, the smart card module has, on the reverse side of the supporting plate, another connection plane that is also electrically connected to the semiconductor chip. The other connection plane may be used, for example, for turning on a built-in induction coil inside the chip body for contactless data transfer. The invention relates also to a combined smart card for contacting and contactless data transfer, which contains the smart card module. A manufacturing process is specified with a given sequence of process steps leading to the production of the smart card module.
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Citations
16 Claims
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1. A method of producing a smart card module having a substrate with a first contact plane, a semiconductor chip, and a further connecting plane, the method which comprises:
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laminating a metal strip along a longitudinal direction onto a first side of a module substrate ribbon; structuring the metal strip to form individual connecting sites of a further connecting plane and simultaneously structuring the module substrate ribbon by punching the module substrate ribbon for forming a cavity for receiving a semiconductor chip and openings for electrically conductive connections in the module substrate ribbon; subsequently laminating a metal foil onto a second side of the module substrate ribbon, and structuring the metal foil to form a first contact plane electrically isolated from the further connecting plane; mounting the semiconductor chip in the module substrate ribbon and contacting the chip with the first contact plane and the further connecting plane; encasing the semiconductor chip with a plastic compound; and singling an individual smart card module from the module substrate ribbon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification