Patent ID: 6299070
Filing Date: 2001-10-09
Classification: G06K

Abstract:
A method of producing a data carrier, comprising the steps of:connecting a functional component comprising an electronic circuit unit, to both ends of an antenna coil;molding a tray provided with a cylindrical portion having a first depression in its surface which corresponds to a shape of said functional component, and with a second annular-shaped depression which surrounds said cylindrical portion;inserting said functional component into said first depression and said antenna coil into said second annular-shaped depression of said tray;installing a cap over said cylindrical portion to face toward an injection gate to protect said functional component from a high pressure of injection molding; andplacing said tray in a lower mold and creating a seal by injection molding to seal said tray,wherein a lead cable of said antenna coil runs over said antenna coil.