A semiconductor device including a light sensing region disposed on a substrate is provided that includes a bond structure having one or more patterned layers underlying the pad element. The pad element may be coupled to the light sensing region and may be formed in a first metal layer disposed on the substrate. A second metal layer of the device has a first bond region, a region of the second metal layer that underlies the pad element. This first bond region of the second metal layer includes a pattern of a plurality of conductive lines interposed by dielectric. A via connects the pad element and the second metal layer.