Patent ID: 7377446
Filing Date: 2008-05-27
Classification: G06K,H01L

Abstract:
1. An IC card comprising: an IC module which comprises an IC chip mounted on an insulating substrate having an antenna coil, a sealing material which encapsulates said IC chip, and a chip reinforcing plate provided on at least an IC mounted surface of said insulating substrate and formed on said IC chip through said sealing material; and a core layer comprising a plurality of sheet materials having said IC module disposed therebetween, wherein, in said plurality of sheet materials, at least the sheet materials adjacent to said IC module have a through hole (a) for containing therein said IC chip said sealing material and said chip reinforcing plate, and (b) formed to penetrate the adjacent sheet materials in a region corresponding to an IC mounted portion of said IC module before placing said IC chip therein, said plurality of sheet materials constituting said core layer comprise at least a pair of inner core sheets adjacent to said IC module, a relationship (B the relationships B=B said through holes are larger than at least one of a length and a width of said sealing material and than at least one of a length and a width of said chip reinforcing plate so as to form at least one empty region in said through holes.