Patent ID: 7812694
Filing Date: 2010-10-12
Classification: H01P

Abstract:
1. A coplanar waveguide structure for propagating signals on an integrated circuit chip, the coplanar waveguide structure comprising: a signal conductor configured to propagate the signals; first and second ground conductors generally coplanar with the signal conductor, the signal conductor located laterally between the first and second ground conductors; a first coplanar array of shield conductors above the signal conductor and the first and second ground conductors, the shield conductors in the first coplanar array aligned substantially orthogonal to the signal conductor; a second coplanar array of shield conductors below the signal conductor and the first and second ground conductors, the shield conductors in the second coplanar array aligned substantially orthogonal to the signal conductor; a first plurality of conductive bridges electrically isolated from the signal conductor, the first plurality of conductive bridges located laterally between the signal conductor and the first ground conductor, and each of the first plurality of conductive bridges connecting a respective one of the shield conductors in the first coplanar array with a corresponding one of the shield conductors in the second coplanar array; and a second plurality of conductive bridges electrically isolated from the signal conductor, the second plurality of conductive bridges located laterally between the signal conductor and the second ground conductor, and each of the second plurality of conductive bridges connecting a respective one of the shield conductors in the first coplanar array with a corresponding one of the shield conductors in the second coplanar array, wherein the signal conductor and the first and second ground conductors are metal features in a first metallization level of a back end of line (BEOL) interconnect structure, the first array of shield conductors are metal features in a second metallization level of the BEOL interconnect structure, and the second array of shield conductors are metal features in a third metallization level of the BEOL interconnect structure, and the first layer is disposed between the second and third layers.