| 摘要 |
<p>A miniaturized electric coil having a centre tap (10) which is constructed from a spiral-like bottom conductor pattern (1) provided on a substrate, an insulating intermediate layer (11) and a spiral-like top conductor pattern (16) which is connected to the bottom conductor pattern via windows (12, 13, 14, 15 and soon) in the intermediate layer. A conductor path (23) which is situated in the top conductor pattern is led out from the interior of the top conductor pattern to form the tap (10). At the area of said conductor path the conductors of the top conductor pattern are locally interrupted, in which connection conductors in the bottom conductor pattern are connected parallel to the interruptions so as to ensure an undisturbed current flow in the top conductor pattern.</p> |
