An apparatus includes three components. The first component includes a first transmission line; the second component is coupled with the first component and includes a second transmission line; and the third component electrically coupled with the first component and/or the second component. The transmission lines each include a substrate with a p-well or n-well within the substrate and a shielding layer over the p-well or n-well. The transmission lines also each include a plurality of intermediate conducting layers over the shielding layer, the plurality of intermediate conducting layers coupled by a plurality of vias. The transmission lines further each include a top conducting layer over the plurality of intermediate conducting layers.