Patent ID: 7253024

Claim:
A method for manufacturing a dual-interface IC card comprising the steps of: providing a COB (chip on board) having a pair of antenna electrodes on a main board and an IC chip mounted thereon; providing a hot melt sheet having a pair of sheet holes so that the antenna electrodes are exposed, and having a central hole so that the IC chip is inserted into the central hole; providing an antenna foil having a second hole whose size is smaller than those of the COB and the hot melt sheet, and having an antenna wound on the antenna foil to be connected to the antenna electrodes; providing a core foil having a third hole whose size is equivalent to that of the IC chip, so that the IC chip is inserted into the third hole and the hot melt sheet is adhered; connecting electrically the antenna connection elements of the antenna to the antenna electrodes; and heat-pressing the laminated structure of the COB, the hot melt sheet, the antenna foil and the core foil.