Patent ID: 6839963

Claim:
A method for producing a circuit unit comprising an insulating carrier substrate ( 1 ) on which a conductive coil ( 3 ) is located, and an integrated circuit ( 7 ) whose connection points ( 27 ) are electrically connected with the coil ends ( 15 , 19 ) directly or via contacts ( 2 S), comprising the following steps: applying a coil section ( 9 ) with at least one turn to the substrate ( 1 ), covering at least the area of the applied coil section with an insulating layer ( 11 ) containing at least one opening ( 13 ) through which at least one of the covered turns of the coil section ( 9 ) is accessible, applying to the insulating layer ( 11 ) a further coil section ( 17 ) with at least one turn which is electrically connected with the previously covered coil section ( 9 ) through the at least one opening ( 13 ), the electric connection being produced by the coil material of the further coil section ( 17 ), electrically connecting the connection points ( 27 ) of the integrated circuit ( 7 ), or the contacts ( 25 ) of a module ( 23 ) containing the integrated circuit ( 7 ), with one end ( 15 ) of the coil section ( 9 ) located directly on the insulating substrate ( 1 ), on the one hand, and with one end ( 19 ) of the last applied coil section ( 17 ), on the other hand.