Antenna sheet, data carrier with non-contact IC, and method for producing antenna sheet

摘要

Disclosed is a method for producing an antenna sheet, which comprises: a pressing step in which an overlapped portion of an antenna coil and/or connection pattern, which is formed from a metal material and provided on one surface of a substrate that is formed from a thermoplastic resin, and a conductive member that is formed from a metal material and provided on the other surface of the substrate is pressed using a pressing means at least from the side of one surface of the substrate; and a welding step in which the overlapped portion of the antenna coil and/or connection pattern and the conductive member is welded.