Patent ID: 8310840
Filing Date: 2012-11-13
Classification: H01L,H01P,H05K

Abstract:
1. An electromagnetic bandgap structure comprising: a dielectric layer; a plurality of conductive plates arranged two-dimensionally on a same planar surface of the dielectric layer; and a plurality of stitching vias, configured to electrically connect the conductive plates with one another and passing through the dielectric layer, a part of each of the stitching via being placed in a planar surface that is different from a planar surface in which the conductive plates are placed, wherein the conductive plates that are not placed in outermost areas of the two-dimensionally arranged conductive plates are respectively connected with at least three of the stitching vias connecting adjacent conductive plates among the conductive plates arranged two-dimensionally on a same planar surface; wherein the plurality of stitching vias comprises: a first via, passing through the dielectric layer and having an end part being connected to any one of two adjacent conductive plates; a second via, passing through the dielectric layer and having an end part being connected to the other of two adjacent conductive plates; and a connection pattern, having one end part being connected to the other end part of the first via and the other end part being connected to the other end part of the second via; further comprising a conductive layer, wherein the dielectric layer is placed between the conductive plates and the conductive layer.