Method for making contactless cards with coiled antenna
US6517005B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 23, 1999 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Aug 23, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/07783
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention concerns the production of contactless transmission chip card, and particularly mixed cards operating with or without contact. The method for the reliable and efficient setting of an integrated circuit module (M) and of an inductive transmission antenna (A), consists in producing the module providing connection ranges for the antenna, making an antenna with a flat coiled wire, and soldering the ends of said antenna on the module ranges, then making a plastic wafer (30) provided with an opening, the bottom of this opening being closed by an adhesive film (34). The module and the antenna are set against the wafer, and maintained by the adhesive material at the bottom of the housing. Another wafer (40) is directly mounted on the assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.