Patent ID: 7899432

Claim:
An apparatus comprising: a dielectric substrate having a first edge and a second edge; a first planar conductive fin deposited on the substrate, and having a portion extending over the first edge of the substrate; a second planar conductive fin deposited on the substrate, and having a portion extending over the second edge of the substrate, so that a gap is formed between the first and second conductive fins and adjacent to the dielectric substrate; and a first substrate comprising a conductive surface having a first trench, the first trench having a through-arm having a first end and a second end, and the first trench having a side-arm extending away from the through-arm at a side position between the first and second ends of the through-arm, the side-arm having an end; wherein the portions of the first and second planar conductive fins extending over the first and second edges of the dielectric substrate are adjacent to the first substrate such that the dielectric substrate and the gap are positioned over the first trench.