Patent ID: 7999361
Filing Date: 2011-08-16
Classification: H01L

Abstract:
1. A shielding structure comprising: first and second comb-like structures defined in a first metallization layer on an integrated circuit, each comb-like structure comprising a plurality of teeth, the teeth of each comb-like structure extending toward the other comb-like structure; a first plurality of electrically conducting vias extending upward from the first comb-like structure; a second plurality of electrically conducting vias extending upward from the second comb-like structure; first and second planar structures in a second metallization layer above the first metallization layer; a third plurality of electrically conducting vias extending downward from the first planar structure toward the first plurality of electrically conducting vias; and a fourth plurality of electrically conducting vias extending downward from the second planar structure toward the second plurality of electrically conducting vias, said first and second comb-like structures, said first and second planar structures and said first, second, third, and fourth electrically conducting vias all being at substantially the same potential.