Patent ID: 7298234

Claim:
A high-speed electronics interconnection system comprising: a first ground plane which is either continuous or discontinuous; a first dielectric layer having at least one first open trench on one side of said dielectric layer wherein said first ground plane is not encased by said at least one open trench; a second dielectric layer having at least one second open trench, wherein said second dielectric layer is located in close proximity to said first dielectric layer; at least one electrical signal line located on said second dielectric layer; a second ground plane which is either continuous or discontinuous; and a third dielectric layer; wherein said at least one electrical signal line, said first and second dielectric layers, and said first and second ground planes are stacked together to form a transmission line, wherein said first and second open trenches in said first dielectric layer and said second dielectric layer are located under and above, respectively, said at least one electrical signal line to reduce the microwave loss induced due to said first and second dielectric layers in order to increase the bandwidth of the interconnection system, wherein said at least one-electrical signal line is sandwiched by said first and second ground planes, said first and second open trenches, and the portion of dielectrics remaining in said first and second dielectric layers.