Patent ID: 8853848

Claim:
An interconnection structure, disposed between a first conductive layer and a second conductive layer substantially parallel to each other and including a first signal trace and a second signal trace, respectively, the interconnection structure comprising: a conductor pillar, arranged between the first conductive layer and the second conductive layer, and electrically connected to the first signal trace and the second signal trace; and a shielding wall pillar structure, disposed at a portion of an external region surrounding the conductor pillar and electrically connected to a reference conductive wire, wherein: the shielding wall pillar structure includes at least a first area facing the conductor pillar, the first area being a continuous surface and greater than a second area formed by projecting the conductor pillar onto the shielding wall pillar structure, and the first area includes a sub-area extending along a direction parallel to the conductor pillar between an upper end coplanar with an upper surface of the first signal trace and a lower end coplanar with a lower surface of the second signal trace, the sub-area intersecting with an imaginary extension of the first signal trace and having a same width as the first signal trace.