Patent ID: 7612638
Filing Date: 2009-11-03
Classification: H01L,H01P

Abstract:
1. A waveguide in semiconductor integrated circuits, the waveguide comprising: a horizontal first metal plate; a horizontal second metal plate above the first metal plate, separated by a first insulation material; and a first plurality of separate metal vias aligned to form two parallel planes, running vertically through the insulation material in contact with both the first and second metal plates, wherein the first and second metal plates and the two parallel planes formed by the vias further form a first metal enclosure in a cross-sectional view, wherein a minimum via spacing between two adjacent metal vias in the same plane is less than about one tenth of a wavelength of an electromagnetic radiation transmitting through the first metal enclosure, and wherein the horizontal first metal plate or the horizontal second metal plate has one or more openings with a diameter less than the minimum via spacing between two adjacent metal vias in the same plane.