| 摘要 |
<p>PURPOSE:To unite a core sheet and a cover sheet without interposing any adhe sive sheet and to obtain a thin, curvature-free IC card by using the same or similar kind of thermoplastic resin for the core sheet and cover sheet. CONSTITUTION:The core sheet 1 is as thick as IC chips 2a and 2b, which are inserted into opening parts 1a and 1b to eliminate a sensation of foreign matter when it is touched. When printing is carried out on surfaces of cover sheets 7 and 8 at the side of the core sheet, inner sheets 5 and 6 are interposed between the core sheet 1 and cover sheets 7 and 8 so as to prevent printed surfaces from being disordered owing to direct contacting between an IC chip surface and the printed surfaces of the cover sheets 7 and 8. A wiring pattern 3 on one surface of the core sheet 1 is connected to an external connection terminal 4 and led out through the opening part 7a of the cover sheet 7. All the sheets 1 and 5-8 are made of the same or the similar kind of thermoplastic resin, so they are united when heat-pressed and there is no curvature.</p> |
