Patent ID: 9478508
Filing Date: 2016-10-25
CPC Classification: H01L

Claim Text:
1. A microwave transmission line structure, comprising: a substrate; a semiconductor layer disposed over a first portion of the substrate, the semiconductor layer having an first electrical device formed therein; a second electrical device disposed over a second portion of the substrate, the second portion being laterally displaced from the first portion of the substrate; a dielectric structure disposed over the first portion and the second portion of the substrate; a strip conductor disposed over an upper surface of the dielectric structure, the strip conductor extending laterally over the first portion and the second portion of the substrate; wherein the dielectric structure has an open ended trench therein; wherein the strip conductor is disposed in the trench; wherein the strip conductor comprises a plurality of stacked metal layers disposed vertically in the trench; wherein such stacked metal layers have disposed on bottom and sidewalls thereof conductive barrier metal layers; wherein the strip conductor has a first bottom portion electrically connected to the second electrical device through a first electrically conductive via passing vertically through the first portion of the dielectric structure and a second bottom portion laterally displaced from the first bottom portion electrically connected to the first electrical device through a second electrically conductive via passing vertically through the second portion of the dielectric structure; and wherein the strip conductor carries a portion of the microwave energy between the first electrical device and the second electrical device laterally over the first portion and the second portion of the substrate.